Author: Mariola Espinosa
Publisher: University of Chicago Press
ISBN: 0226218139
Category : Medical
Languages : en
Pages : 201
Book Description
In the early fall of 1897, yellow fever shuttered businesses, paralyzed trade, and caused tens of thousand of people living in the southern United States to abandon their homes and flee for their lives. Originating in Cuba, the deadly plague inspired disease-control measures that not only protected U.S. trade interests but also justified the political and economic domination of the island nation from which the pestilence came. By focusing on yellow fever, Epidemic Invasions uncovers for the first time how the devastating power of this virus profoundly shaped the relationship between the two countries. Yellow fever in Cuba, Mariola Espinosa demonstrates, motivated the United States to declare war against Spain in 1898, and, after the war was won and the disease eradicated, the United States demanded that Cuba pledge in its new constitution to maintain the sanitation standards established during the occupation. By situating the history of the fight against yellow fever within its political, military, and economic context, Espinosa reveals that the U.S. program of sanitation and disease control in Cuba was not a charitable endeavor. Instead, she shows that it was an exercise in colonial public health that served to eliminate threats to the continued expansion of U.S. influence in the world.
Epidemic Invasions
Author: Mariola Espinosa
Publisher: University of Chicago Press
ISBN: 0226218139
Category : Medical
Languages : en
Pages : 201
Book Description
In the early fall of 1897, yellow fever shuttered businesses, paralyzed trade, and caused tens of thousand of people living in the southern United States to abandon their homes and flee for their lives. Originating in Cuba, the deadly plague inspired disease-control measures that not only protected U.S. trade interests but also justified the political and economic domination of the island nation from which the pestilence came. By focusing on yellow fever, Epidemic Invasions uncovers for the first time how the devastating power of this virus profoundly shaped the relationship between the two countries. Yellow fever in Cuba, Mariola Espinosa demonstrates, motivated the United States to declare war against Spain in 1898, and, after the war was won and the disease eradicated, the United States demanded that Cuba pledge in its new constitution to maintain the sanitation standards established during the occupation. By situating the history of the fight against yellow fever within its political, military, and economic context, Espinosa reveals that the U.S. program of sanitation and disease control in Cuba was not a charitable endeavor. Instead, she shows that it was an exercise in colonial public health that served to eliminate threats to the continued expansion of U.S. influence in the world.
Publisher: University of Chicago Press
ISBN: 0226218139
Category : Medical
Languages : en
Pages : 201
Book Description
In the early fall of 1897, yellow fever shuttered businesses, paralyzed trade, and caused tens of thousand of people living in the southern United States to abandon their homes and flee for their lives. Originating in Cuba, the deadly plague inspired disease-control measures that not only protected U.S. trade interests but also justified the political and economic domination of the island nation from which the pestilence came. By focusing on yellow fever, Epidemic Invasions uncovers for the first time how the devastating power of this virus profoundly shaped the relationship between the two countries. Yellow fever in Cuba, Mariola Espinosa demonstrates, motivated the United States to declare war against Spain in 1898, and, after the war was won and the disease eradicated, the United States demanded that Cuba pledge in its new constitution to maintain the sanitation standards established during the occupation. By situating the history of the fight against yellow fever within its political, military, and economic context, Espinosa reveals that the U.S. program of sanitation and disease control in Cuba was not a charitable endeavor. Instead, she shows that it was an exercise in colonial public health that served to eliminate threats to the continued expansion of U.S. influence in the world.
Nature Out of Place
Author: Jason Van Driesche
Publisher: Island Press
ISBN: 1610910958
Category : Nature
Languages : en
Pages : 385
Book Description
Though the forests are still green and the lakes full of water, an unending stream of invasions is changing many ecosystems around the world from productive, tightly integrated webs of native species to loose assemblages of stressed native species and aggressive invaders. The earth is becoming what author David Quammen has called a "planet of weeds." Nature Out of Place brings this devastating but overlooked crisis to the forefront of public consciousness by offering a fascinating exploration of its causes and consequences, along with a thoughtful and practical consideration of what can be done about it. The father and son team of Jason and Roy Van Driesche offer a unique combination of narratives that highlight specific locations and problems along with comprehensive explanations of the underlying scientific and policy issues. Chapters examine Hawaii, where introduced feral pigs are destroying the islands' native forests; zebra mussel invasion in the rivers of Ohio; the decades-long effort to eradicate an invasive weed on the Great Plains; and a story about the restoration of both ecological and human history in an urban natural area. In-depth background chapters explain topics ranging from how ecosystems become diverse, to the characteristics of effective invaders, to procedures and policies that can help prevent future invasions. The book ends with a number of specific suggestions for ways that individuals can help reduce the impacts of invasive species, and offers resources for further information. By bringing the problem of invasive species to life for readers at all levels, Nature Out of Place will play an essential role in the vital effort to raise public awareness of this ongoing ecological crisis.
Publisher: Island Press
ISBN: 1610910958
Category : Nature
Languages : en
Pages : 385
Book Description
Though the forests are still green and the lakes full of water, an unending stream of invasions is changing many ecosystems around the world from productive, tightly integrated webs of native species to loose assemblages of stressed native species and aggressive invaders. The earth is becoming what author David Quammen has called a "planet of weeds." Nature Out of Place brings this devastating but overlooked crisis to the forefront of public consciousness by offering a fascinating exploration of its causes and consequences, along with a thoughtful and practical consideration of what can be done about it. The father and son team of Jason and Roy Van Driesche offer a unique combination of narratives that highlight specific locations and problems along with comprehensive explanations of the underlying scientific and policy issues. Chapters examine Hawaii, where introduced feral pigs are destroying the islands' native forests; zebra mussel invasion in the rivers of Ohio; the decades-long effort to eradicate an invasive weed on the Great Plains; and a story about the restoration of both ecological and human history in an urban natural area. In-depth background chapters explain topics ranging from how ecosystems become diverse, to the characteristics of effective invaders, to procedures and policies that can help prevent future invasions. The book ends with a number of specific suggestions for ways that individuals can help reduce the impacts of invasive species, and offers resources for further information. By bringing the problem of invasive species to life for readers at all levels, Nature Out of Place will play an essential role in the vital effort to raise public awareness of this ongoing ecological crisis.
A Plague of Rats and Rubbervines
Author: Yvonne Baskin
Publisher: Island Press
ISBN: 1610911008
Category : Nature
Languages : en
Pages : 388
Book Description
The human love of novelty and desire to make one place look like another, coupled with massive increases in global trade and transport, are creating a growing economic and ecological threat. The same forces that are rapidly "McDonaldizing" the world's diverse cultures are also driving us toward an era of monotonous, weedy, and uniformly impoverished landscapes. Unique plant and animal communities are slowly succumbing to the world's "rats and rubbervines" -- animals like zebra mussels and feral pigs, and plants like kudzu and water hyacinth -- that, once moved into new territory, can disrupt human enterprise and well-being as well as native habitats and biodiversity. From songbird-eating snakes in Guam to cheatgrass in the Great Plains, "invasives" are wreaking havoc around the world. In A Plague of Rats and Rubbervines, widely published science writer Yvonne Baskin draws on extensive research to provide an engaging and authoritative overview of the problem of harmful invasive alien species. She takes the reader on a worldwide tour of grasslands, gardens, waterways, and forests, describing the troubles caused by exotic organisms that run amok in new settings and examining how commerce and travel on an increasingly connected planet are exacerbating this oldest of human-created problems. She offers examples of potential solutions and profiles dedicated individuals worldwide who are working tirelessly to protect the places and creatures they love. While our attention is quick to focus on purposeful attempts to disrupt our lives and economies by releasing harmful biological agents, we often ignore equally serious but much more insidious threats, those that we inadvertently cause by our own seemingly harmless actions. A Plague of Rats and Rubbervines takes a compelling look at this underappreciated problem and sets forth positive suggestions for what we as consumers, gardeners, travelers, nurserymen, fishermen, pet owners, business people -- indeed all of us who by our very local choices drive global commerce -- can do to help. "
Publisher: Island Press
ISBN: 1610911008
Category : Nature
Languages : en
Pages : 388
Book Description
The human love of novelty and desire to make one place look like another, coupled with massive increases in global trade and transport, are creating a growing economic and ecological threat. The same forces that are rapidly "McDonaldizing" the world's diverse cultures are also driving us toward an era of monotonous, weedy, and uniformly impoverished landscapes. Unique plant and animal communities are slowly succumbing to the world's "rats and rubbervines" -- animals like zebra mussels and feral pigs, and plants like kudzu and water hyacinth -- that, once moved into new territory, can disrupt human enterprise and well-being as well as native habitats and biodiversity. From songbird-eating snakes in Guam to cheatgrass in the Great Plains, "invasives" are wreaking havoc around the world. In A Plague of Rats and Rubbervines, widely published science writer Yvonne Baskin draws on extensive research to provide an engaging and authoritative overview of the problem of harmful invasive alien species. She takes the reader on a worldwide tour of grasslands, gardens, waterways, and forests, describing the troubles caused by exotic organisms that run amok in new settings and examining how commerce and travel on an increasingly connected planet are exacerbating this oldest of human-created problems. She offers examples of potential solutions and profiles dedicated individuals worldwide who are working tirelessly to protect the places and creatures they love. While our attention is quick to focus on purposeful attempts to disrupt our lives and economies by releasing harmful biological agents, we often ignore equally serious but much more insidious threats, those that we inadvertently cause by our own seemingly harmless actions. A Plague of Rats and Rubbervines takes a compelling look at this underappreciated problem and sets forth positive suggestions for what we as consumers, gardeners, travelers, nurserymen, fishermen, pet owners, business people -- indeed all of us who by our very local choices drive global commerce -- can do to help. "
Epidemics, Empire, and Environments
Author: Michael Zeheter
Publisher: University of Pittsburgh Press
ISBN: 0822981041
Category : Technology & Engineering
Languages : en
Pages : 303
Book Description
Throughout the nineteenth century, cholera was a global scourge against human populations. Practitioners had little success in mitigating the symptoms of the disease, and its causes were bitterly disputed. What experts did agree on was that the environment played a crucial role in the sites where outbreaks occurred. In this book, Michael Zeheter offers a probing case study of the environmental changes made to fight cholera in two markedly different British colonies: Madras in India and Quebec City in Canada. The colonial state in Quebec aimed to emulate British precedent and develop similar institutions that allowed authorities to prevent cholera by imposing quarantines and controlling the disease through comprehensive change to the urban environment and sanitary improvements. In Madras, however, the provincial government sought to exploit the colony for profit and was reluctant to commit its resources to measures against cholera that would alienate the city's inhabitants. It was only in 1857, after concern rose in Britain over the health of its troops in India, that a civilizing mission of sanitary improvement was begun. As Zeheter shows, complex political and economic factors came to bear on the reshaping of each colony's environment and the urgency placed on disease control.
Publisher: University of Pittsburgh Press
ISBN: 0822981041
Category : Technology & Engineering
Languages : en
Pages : 303
Book Description
Throughout the nineteenth century, cholera was a global scourge against human populations. Practitioners had little success in mitigating the symptoms of the disease, and its causes were bitterly disputed. What experts did agree on was that the environment played a crucial role in the sites where outbreaks occurred. In this book, Michael Zeheter offers a probing case study of the environmental changes made to fight cholera in two markedly different British colonies: Madras in India and Quebec City in Canada. The colonial state in Quebec aimed to emulate British precedent and develop similar institutions that allowed authorities to prevent cholera by imposing quarantines and controlling the disease through comprehensive change to the urban environment and sanitary improvements. In Madras, however, the provincial government sought to exploit the colony for profit and was reluctant to commit its resources to measures against cholera that would alienate the city's inhabitants. It was only in 1857, after concern rose in Britain over the health of its troops in India, that a civilizing mission of sanitary improvement was begun. As Zeheter shows, complex political and economic factors came to bear on the reshaping of each colony's environment and the urgency placed on disease control.
The History of the World in 100 Pandemics, Plagues and Epidemics
Author: Paul Chrystal
Publisher: Pen and Sword History
ISBN: 139900543X
Category : History
Languages : en
Pages : 619
Book Description
This “timely, topical, informative [and] exceptionally well written” history explores the impact of disease from prehistoric plagues to Covid-19 (Midwest Book Review). Historian Paul Chrystal charts how human civilization has grappled with successive pandemics, plagues, and epidemics across millennia. Ranging from prehistory to the present day, this volume begins by defining what constitutes a pandemic or epidemic, taking a close look at 20 historic examples: including cholera, influenza, bubonic plague, leprosy, measles, smallpox, malaria, AIDS, MERS, SARS, Zika, Ebola and, of course, Covid-19. Some less well-known, but equally significant and deadly contagions such as Legionnaires’ Disease, psittacosis, polio, the Sweat, and dancing plague, are also covered. Chrystal provides comprehensive information on each disease, including epidemiology, sources and vectors, morbidity, and mortality, as well as governmental and societal responses, and their political, legal, and scientific consequences. He sheds light on how public health crises have shaped history—particularly in the realms of medical and scientific research and vaccine development. Chrystal also examines myths about infectious diseases, and the role of the media, including social media.
Publisher: Pen and Sword History
ISBN: 139900543X
Category : History
Languages : en
Pages : 619
Book Description
This “timely, topical, informative [and] exceptionally well written” history explores the impact of disease from prehistoric plagues to Covid-19 (Midwest Book Review). Historian Paul Chrystal charts how human civilization has grappled with successive pandemics, plagues, and epidemics across millennia. Ranging from prehistory to the present day, this volume begins by defining what constitutes a pandemic or epidemic, taking a close look at 20 historic examples: including cholera, influenza, bubonic plague, leprosy, measles, smallpox, malaria, AIDS, MERS, SARS, Zika, Ebola and, of course, Covid-19. Some less well-known, but equally significant and deadly contagions such as Legionnaires’ Disease, psittacosis, polio, the Sweat, and dancing plague, are also covered. Chrystal provides comprehensive information on each disease, including epidemiology, sources and vectors, morbidity, and mortality, as well as governmental and societal responses, and their political, legal, and scientific consequences. He sheds light on how public health crises have shaped history—particularly in the realms of medical and scientific research and vaccine development. Chrystal also examines myths about infectious diseases, and the role of the media, including social media.
Invading Guatemala
Author: Matthew Restall
Publisher: Penn State Press
ISBN: 0271027584
Category : History
Languages : en
Pages : 154
Book Description
The invasions of Guatemala -- Pedro de Alvarado's letters to Hernando Cortes, 1524 -- Other Spanish accounts -- Nahua accounts -- Maya accounts
Publisher: Penn State Press
ISBN: 0271027584
Category : History
Languages : en
Pages : 154
Book Description
The invasions of Guatemala -- Pedro de Alvarado's letters to Hernando Cortes, 1524 -- Other Spanish accounts -- Nahua accounts -- Maya accounts
Lives at Risk
Author: LaVerne Kuhnke
Publisher: Univ of California Press
ISBN: 0520310152
Category : Social Science
Languages : en
Pages : 246
Book Description
Lives at Risk describes the introduction of Western medicine into Egypt. The two major innovations undertaken by Muhammad Ali in the mid-nineteenth century were a Western-style school of medicine and an international Quarantine Board. The ways in which these institutions succeeded and failed will greatly interest historians of medicine and of modern Egypt. And because the author relates her narrative to twentieth-century health issues in developing countries, Lives at Risk will also interest medical and social anthropologists. The presence of the quarantine establishment and the medical school in Egypt resulted in a rudimentary public health service. Paramedical personnel were trained to provide primary health care for the peasant population. A vaccination program effectively freed the nation from smallpox. But the disease-oriented, individual-care practice of medicine derived from the urban hospital model of industrializing Europe was totally incompatible with the health care requirements of a largely rural, agrarian population. This title is part of UC Press's Voices Revived program, which commemorates University of California Press's mission to seek out and cultivate the brightest minds and give them voice, reach, and impact. Drawing on a backlist dating to 1893, Voices Revived makes high-quality, peer-reviewed scholarship accessible once again using print-on-demand technology. This title was originally published in 1990.
Publisher: Univ of California Press
ISBN: 0520310152
Category : Social Science
Languages : en
Pages : 246
Book Description
Lives at Risk describes the introduction of Western medicine into Egypt. The two major innovations undertaken by Muhammad Ali in the mid-nineteenth century were a Western-style school of medicine and an international Quarantine Board. The ways in which these institutions succeeded and failed will greatly interest historians of medicine and of modern Egypt. And because the author relates her narrative to twentieth-century health issues in developing countries, Lives at Risk will also interest medical and social anthropologists. The presence of the quarantine establishment and the medical school in Egypt resulted in a rudimentary public health service. Paramedical personnel were trained to provide primary health care for the peasant population. A vaccination program effectively freed the nation from smallpox. But the disease-oriented, individual-care practice of medicine derived from the urban hospital model of industrializing Europe was totally incompatible with the health care requirements of a largely rural, agrarian population. This title is part of UC Press's Voices Revived program, which commemorates University of California Press's mission to seek out and cultivate the brightest minds and give them voice, reach, and impact. Drawing on a backlist dating to 1893, Voices Revived makes high-quality, peer-reviewed scholarship accessible once again using print-on-demand technology. This title was originally published in 1990.
Invasion Biology
Author: Jonathan M Jeschke
Publisher: CABI
ISBN: 1780647646
Category : Science
Languages : en
Pages : 189
Book Description
There are many hypotheses describing the interactions involved in biological invasions, but it is largely unknown whether they are backed up by empirical evidence. This book fills that gap by developing a tool for assessing research hypotheses and applying it to twelve invasion hypotheses, using the hierarchy-of-hypotheses (HoH) approach, and mapping the connections between theory and evidence. In Part 1, an overview chapter of invasion biology is followed by an introduction to the HoH approach and short chapters by science theorists and philosophers who comment on the approach. Part 2 outlines the invasion hypotheses and their interrelationships. These include biotic resistance and island susceptibility hypotheses, disturbance hypothesis, invasional meltdown hypothesis, enemy release hypothesis, evolution of increased competitive ability and shifting defence hypotheses, tens rule, phenotypic plasticity hypothesis, Darwin's naturalization and limiting similarity hypotheses and the propagule pressure hypothesis. Part 3 provides a synthesis and suggests future directions for invasion research.
Publisher: CABI
ISBN: 1780647646
Category : Science
Languages : en
Pages : 189
Book Description
There are many hypotheses describing the interactions involved in biological invasions, but it is largely unknown whether they are backed up by empirical evidence. This book fills that gap by developing a tool for assessing research hypotheses and applying it to twelve invasion hypotheses, using the hierarchy-of-hypotheses (HoH) approach, and mapping the connections between theory and evidence. In Part 1, an overview chapter of invasion biology is followed by an introduction to the HoH approach and short chapters by science theorists and philosophers who comment on the approach. Part 2 outlines the invasion hypotheses and their interrelationships. These include biotic resistance and island susceptibility hypotheses, disturbance hypothesis, invasional meltdown hypothesis, enemy release hypothesis, evolution of increased competitive ability and shifting defence hypotheses, tens rule, phenotypic plasticity hypothesis, Darwin's naturalization and limiting similarity hypotheses and the propagule pressure hypothesis. Part 3 provides a synthesis and suggests future directions for invasion research.
Biological Invasions: Theory and Practice
Author: Nanako Shigesada
Publisher: Oxford University Press, UK
ISBN: 0191589829
Category :
Languages : en
Pages : 222
Book Description
This book deals with the ecological effect a species can have when it moves into an environment that it has not previously occupied (commonly referred to as an 'Invasion'). It is unique in presenting a clear and accessible introduction to a highly complex area - the modelling of biological invasions. The book presents the latest theories and models developed from studies into this crucial area. It includes data and examples from biological case studies showing how the models can be applied to the study of invasions, whether dealing with AIDS, the European rabbit, or prickly pear cactuses. - ;In nature, all organisms migrate or disperse to some extent, either by walking, swimming, flying, or being transported by wind or water. When a species succeeds in colonising an area that it has not previously inhabited, this is referred to as an `invasion'. Humans can precipitate biological invasions often spreading disease or pests by their travels around the world. Using the large amount of data that has been collected from studies worldwide, ranging from pest control to epidemiology, it has been possible to construct mathematical models that can predict which species will become an invader, what kind of habitat is susceptible to invasion by a particular species, and how fast an invasion will spread if it occurs. This book presents a clear and accessible introduction to this highly complex area. Included are data and examples from biological case studies showing how these models can be applied to the study of invasions, whether dealing with AIDS, the European rabbit, or prickly pear cactuses. -
Publisher: Oxford University Press, UK
ISBN: 0191589829
Category :
Languages : en
Pages : 222
Book Description
This book deals with the ecological effect a species can have when it moves into an environment that it has not previously occupied (commonly referred to as an 'Invasion'). It is unique in presenting a clear and accessible introduction to a highly complex area - the modelling of biological invasions. The book presents the latest theories and models developed from studies into this crucial area. It includes data and examples from biological case studies showing how the models can be applied to the study of invasions, whether dealing with AIDS, the European rabbit, or prickly pear cactuses. - ;In nature, all organisms migrate or disperse to some extent, either by walking, swimming, flying, or being transported by wind or water. When a species succeeds in colonising an area that it has not previously inhabited, this is referred to as an `invasion'. Humans can precipitate biological invasions often spreading disease or pests by their travels around the world. Using the large amount of data that has been collected from studies worldwide, ranging from pest control to epidemiology, it has been possible to construct mathematical models that can predict which species will become an invader, what kind of habitat is susceptible to invasion by a particular species, and how fast an invasion will spread if it occurs. This book presents a clear and accessible introduction to this highly complex area. Included are data and examples from biological case studies showing how these models can be applied to the study of invasions, whether dealing with AIDS, the European rabbit, or prickly pear cactuses. -
Exotic Brome-Grasses in Arid and Semiarid Ecosystems of the Western US
Author: Matthew J. Germino
Publisher: Springer
ISBN: 3319249304
Category : Technology & Engineering
Languages : en
Pages : 475
Book Description
Invasions by exotic grasses, particularly annuals, rank among the most extensive and intensive ways that humans are contributing to the transformation of the earth’s surface. The problem is particularly notable with a suite of exotic grasses in the Bromus genus in the arid and semiarid regions that dominate the western United States, which extend from the dry basins near the Sierra and Cascade Ranges across the Intermountain Region and Rockies to about 105° longitude. This genus includes approximately 150 species that have a wide range of invasive and non-invasive tendencies in their home ranges and in North America. Bromus species that became invasive upon introduction to North America in the late 1800’s, such as Bromus tectorum and B. rubens, have since became the dominant cover on millions of hectares. Here, millenia of ecosystem development led to landscapes that would otherwise be dominated by perennial shrubs, herbs, and biotic soil crusts that were able to persist in spite of variable and scarce precipitation. This native ecosystem resilience is increasingly coveted by land owners and managers as more hectares lose their resistance to Bromus grasses and similar exotics and as climate, land use, and disturbance-regime changes are also superimposed. Managers are increasingly challenged to glean basic services from these ecosystems as they become invaded. Exotic annual grasses reduce wildlife and livestock carrying capacity and increase the frequency and extent of wildfi res and associated soil erosion. This book uses a unique ecoregional and multidisciplinary approach to evaluate the invasiveness, impacts, and management of the large Bromus genus. Students, researchers, and practitioners interested in Bromus specifically and invasive exotics in general will benefit from the depth of knowledge summarized in the book.
Publisher: Springer
ISBN: 3319249304
Category : Technology & Engineering
Languages : en
Pages : 475
Book Description
Invasions by exotic grasses, particularly annuals, rank among the most extensive and intensive ways that humans are contributing to the transformation of the earth’s surface. The problem is particularly notable with a suite of exotic grasses in the Bromus genus in the arid and semiarid regions that dominate the western United States, which extend from the dry basins near the Sierra and Cascade Ranges across the Intermountain Region and Rockies to about 105° longitude. This genus includes approximately 150 species that have a wide range of invasive and non-invasive tendencies in their home ranges and in North America. Bromus species that became invasive upon introduction to North America in the late 1800’s, such as Bromus tectorum and B. rubens, have since became the dominant cover on millions of hectares. Here, millenia of ecosystem development led to landscapes that would otherwise be dominated by perennial shrubs, herbs, and biotic soil crusts that were able to persist in spite of variable and scarce precipitation. This native ecosystem resilience is increasingly coveted by land owners and managers as more hectares lose their resistance to Bromus grasses and similar exotics and as climate, land use, and disturbance-regime changes are also superimposed. Managers are increasingly challenged to glean basic services from these ecosystems as they become invaded. Exotic annual grasses reduce wildlife and livestock carrying capacity and increase the frequency and extent of wildfi res and associated soil erosion. This book uses a unique ecoregional and multidisciplinary approach to evaluate the invasiveness, impacts, and management of the large Bromus genus. Students, researchers, and practitioners interested in Bromus specifically and invasive exotics in general will benefit from the depth of knowledge summarized in the book.