Hydra and the Birth of Experimental Biology, 1744

Hydra and the Birth of Experimental Biology, 1744 PDF Author: Sylvia G. Lenhoff
Publisher:
ISBN:
Category : Science
Languages : en
Pages : 290

Get Book Here

Book Description

Hydra and the Birth of Experimental Biology, 1744

Hydra and the Birth of Experimental Biology, 1744 PDF Author: Sylvia G. Lenhoff
Publisher:
ISBN:
Category : Science
Languages : en
Pages : 290

Get Book Here

Book Description


Hydra and the Birth of Experimental Biology - 1744

Hydra and the Birth of Experimental Biology - 1744 PDF Author: Sylvia G. Lenhoff
Publisher:
ISBN:
Category :
Languages : en
Pages :

Get Book Here

Book Description


Origination of Organismal Form

Origination of Organismal Form PDF Author: Gerd B. Muller
Publisher: MIT Press
ISBN: 9780262134194
Category : Science
Languages : en
Pages : 354

Get Book Here

Book Description
A more comprehensive version of evolutionary theory that focuses as much on the origin of biological form as on its diversification. The field of evolutionary biology arose from the desire to understand the origin and diversity of biological forms. In recent years, however, evolutionary genetics, with its focus on the modification and inheritance of presumed genetic programs, has all but overwhelmed other aspects of evolutionary biology. This has led to the neglect of the study of the generative origins of biological form. Drawing on work from developmental biology, paleontology, developmental and population genetics, cancer research, physics, and theoretical biology, this book explores the multiple factors responsible for the origination of biological form. It examines the essential problems of morphological evolution—why, for example, the basic body plans of nearly all metazoans arose within a relatively short time span, why similar morphological design motifs appear in phylogenetically independent lineages, and how new structural elements are added to the body plan of a given phylogenetic lineage. It also examines discordances between genetic and phenotypic change, the physical determinants of morphogenesis, and the role of epigenetic processes in evolution. The book discusses these and other topics within the framework of evolutionary developmental biology, a new research agenda that concerns the interaction of development and evolution in the generation of biological form. By placing epigenetic processes, rather than gene sequence and gene expression changes, at the center of morphological origination, this book points the way to a more comprehensive theory of evolution.

The Quest for the Invisible

The Quest for the Invisible PDF Author: Marc J. Ratcliff
Publisher: Routledge
ISBN: 1317018400
Category : History
Languages : en
Pages : 332

Get Book Here

Book Description
The eighteenth century has often been viewed as a period of relative decline in the field of microscopy, as interest in microscopes seemed to wane after an intense period of discovery in the seventeenth century. As such, developments in the field during the Enlightenment have been largely overlooked. This book therefore fills a considerable gap in the study of this life science, providing a thorough analysis of what the main concerns of the field were and how microscopists learned to communicate with each other in relevant ways in order to compare results and build a new discipline. Employing a substantial body of contemporary literature from across Europe, Marc J. Ratcliff is able to present us with a definitive account of the state of research into microscopy of the period. He brings to light the little known work of Louis Joblot, re-evaluates the achievements of Abraham Trembley and gives new weight to Otto-Friedrich Müller's important contributions. The book also connects changes in instrument design to an innovative account of microscopical research during the eighteenth century and the rich social networks of communication that grew during this period. Investigating the history of microscopical research from 1680 up to 1800 also shows how scholars progressively established a modern rule on which to shape their new discipline: balancing microscopical magnification with shared vision. This rule developed in response to the diminishing size of the microscopical object during the course of the eighteenth century, from dry minute organisms such as insects, to aquatic minute bodies such as polyps, and finally to aquatic invisible organisms, thus completing the scholar's quest to study the invisible. This book will be essential reading for historians of microscopy, epistemologists, and for historians of the life sciences in the modern period.

Absolute Music and the Construction of Meaning

Absolute Music and the Construction of Meaning PDF Author: Daniel Chua
Publisher: Cambridge University Press
ISBN: 1139431358
Category : Music
Languages : en
Pages : 330

Get Book Here

Book Description
This book is born out of two contradictions: first, it explores the making of meaning in a musical form that was made to lose its meaning at the turn of the nineteenth century; secondly, it is a history of a music that claims to have no history - absolute music. The book therefore writes against that notion of absolute music which tends to be the paradigm for most musicological and analytical studies. It is concerned not so much with what music is, but with why and how meaning is constructed in instrumental music and what structures of knowledge need to be in place for such meaning to exist. From the thought of Vincenzo Galilei to that of Theodore Adorno, Daniel Chua suggests that instrumental music has always been a critical and negative force in modernity, even with its nineteenth-century apotheosis as 'absolute music'.

Jellyfish

Jellyfish PDF Author: Peter Williams
Publisher: Reaktion Books
ISBN: 1789142520
Category : Nature
Languages : en
Pages : 181

Get Book Here

Book Description
Jellyfish are, like the mythical Medusa, both beautiful and potentially dangerous. Found from pole to tropic, these mesmeric creatures form an important part of the sea’s plankton and vary in size from the gigantic to the minute. Perceived as almost alien creatures and seen as best avoided, jellyfish nevertheless have the power to fascinate: with the sheer beauty of their translucent bells and long, trailing tentacles, with a mouth that doubles as an anus, and without a head or brain. Drawing upon myth and historical sources as well as modern scientific advances, this book examines our ambiguous relationship with these ancient and yet ill-understood animals, describing their surprisingly complex anatomy, weaponry, and habits, and their vital contributions to the ocean’s ecosystems.

Worm Work

Worm Work PDF Author: Janelle A. Schwartz
Publisher: U of Minnesota Press
ISBN: 0816673217
Category : Literary Criticism
Languages : en
Pages : 306

Get Book Here

Book Description
Worms. Natural history is riddled with them. Literature is crawling with them. From antiquity to today, the ubiquitous and multiform worm provokes an immediate discomfort and unconscious distancing: it remains us against them in anthropocentric anxiety. So there is always something muddled, or dirty, or even offensive when talking about worms. Rehabilitating the lowly worm into a powerful aesthetic trope, Janelle A. Schwartz proposes a new framework for understanding such a strangely animate nature. Worms, she declares, are the very matter with which the Romantics rethought the relationship between a material world in constant flux and the human mind working to understand it. Worm Work studies the lesser-known natural historical records of Abraham Trembley and his contemporaries and the familiar works of Erasmus Darwin, Charles Darwin, William Blake, Mary Shelley, and John Keats, to expose the worm as an organism that is not only reviled as a taxonomic terror but revered as a sign of great order in nature as well as narrative. This book traces a pattern of cultural production, a vermiculture that is as transformative of matter as it is of mind. It distinguishes decay or division as positive processes in Romantic era writings, compounded by generation or renewal and used to represent the biocentric, complex structuring of organicism. Offering the worm as an archetypal figure through which to recast the evolution of a literary order alongside questions of taxonomy from 1740 to 1820 and on, Schwartz unearths Romanticism as a rich humus of natural historical investigation and literary creation.

The Secular Commedia

The Secular Commedia PDF Author: Wye Jamison Allanbrook
Publisher: Univ of California Press
ISBN: 052095887X
Category : Music
Languages : en
Pages : 253

Get Book Here

Book Description
Wye Jamison Allanbrook’s The Secular Commedia is a stimulating and original rethinking of the music of the late eighteenth century. Hearing the symphonies and concertos of Haydn and Mozart with an ear tuned to operatic style, as their earliest listeners did, Allanbrook shows that this familiar music is built on a set of mimetic associations drawn from conventional modes of depicting character and emotion in opera buffa. Allanbrook mines a rich trove of writings by eighteenth-century philosophers and music theorists to show that vocal music was considered aesthetically superior to instrumental music and that listeners easily perceived the theatrical tropes that underpinned the style. Tracing Enlightenment notions of character and expression back to Greek and Latin writings about comedy and drama, she strips away preoccupations with symphonic form and teleology to reveal anew the kaleidoscopic variety and gestural vitality of the musical surface. In prose as graceful and nimble as the music she discusses, Allanbrook elucidates the idiom of this period for contemporary readers. With notes, musical examples, and a foreword by editors Mary Ann Smart and Richard Taruskin.

Coral Lives

Coral Lives PDF Author: Michele Currie Navakas
Publisher: Princeton University Press
ISBN: 0691240094
Category : History
Languages : en
Pages : 232

Get Book Here

Book Description
"In the eighteenth and nineteenth centuries, coral specimens featured prominently in cabinets of curiosity, and in literary work by writers from Herman Melville to Lydia Huntley Sigourney. Children sang of coral in popular songs. Women, both free and enslaved, wore coral beads. Reef samples drew crowds to galleries and museums. And coral's unique qualities as animal, vegetable, and mineral inspired countless Americans to praise the "coral insect" for creating what one author called "the most wonder-provoking of all natural objects." In this account of coral's history as material and metaphor, Michele Navakas argues that coral shaped the nation's thinking and became deeply entwined with the histories of slavery, wage labor, and women's reproductive and domestic work. European slave traders used red coral to purchase persons along the coast of West Africa from the fifteenth through the eighteenth centuries, while enslaved people performed the labor that brought raw coral from Caribbean, Mediterranean, and Pacific waters to European naturalists and coral traders. In the nineteenth-century U.S., Black and white women frequently compared their bodies to reef-building polyps that silently and continually produced new beings and forged intergenerational bonds. The book traces the global flows of labor, production, manufacture, and trade that brought coral into the daily lives of nineteenth-century Americans, and discusses the cultural traditions surrounding coral in four major geographic regions-Africa, the Pacific, the Caribbean, and Europe-that shaped early American understandings of coral. It then examines works of literature and of natural history by a cross-section of U.S. authors who used the analogy of coral to describe a system in which the labors of each individual enrich all, but also as a body that grows only by silently entombing the living bodies of its most essential workers. A coda addresses the value of historically oriented environmental humanities scholarship at a time of climate crisis"--

The Collected Letters of Antoni Van Leeuwenhoek -

The Collected Letters of Antoni Van Leeuwenhoek - PDF Author: A Committee of Dutch Scientists
Publisher: CRC Press
ISBN: 9789026514500
Category : Technology & Engineering
Languages : en
Pages : 444

Get Book Here

Book Description
This volume (the 14th of a series of 19) contains 21 letters written between August 1701 and March 1704. At least half of these letters were addressed to Fellows of the Royal Society in London. Every volume in the series contains the texts in the original Dutch and an English translation. The great range of subjects studied by Van Leeuwenhoek is reflected in these letters: instruments to measure water; pulmonary diseases; experiments relating to the solution of gold and silver; salt crystals and grains of sand; botanical work, such as duckweed and germination of orange pips; descriptions on protozoa; blood; spermatozoa; and health and hygiene, for example and harmfulness of tea and coffee and the benefits of cleaning teeth.;Volumes One to 13 are available at a reduced price from Swets and Zeitlinger.