Memoirs of the National Academy of Sciences, Vol. 9 (Classic Reprint) PDF Download
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Author: National Academy of Sciences
Publisher: Forgotten Books
ISBN: 9780656026357
Category : Science
Languages : en
Pages : 388
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Book Description
Excerpt from Memoirs of the National Academy of Sciences, Vol. 9 The species of this group are all more or less protectively colored. Their grayish, brownish hues, with yellowish or sometimes greenish markings, harmonize with the tints of the bark of the trunk or branches of trees, whether grown over with lichens or not. In their shape and size, whether at rest or flying, they closely resemble the species of Noctuidae. They differ as a rule, however, in their slower flight, and in resting on the bark or among the leaves of trees, not nestling in grass or low herbage. About the Publisher Forgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.com This book is a reproduction of an important historical work. Forgotten Books uses state-of-the-art technology to digitally reconstruct the work, preserving the original format whilst repairing imperfections present in the aged copy. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in our edition. We do, however, repair the vast majority of imperfections successfully; any imperfections that remain are intentionally left to preserve the state of such historical works.
Author: National Academy of Sciences
Publisher: Forgotten Books
ISBN: 9780656026357
Category : Science
Languages : en
Pages : 388
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Book Description
Excerpt from Memoirs of the National Academy of Sciences, Vol. 9 The species of this group are all more or less protectively colored. Their grayish, brownish hues, with yellowish or sometimes greenish markings, harmonize with the tints of the bark of the trunk or branches of trees, whether grown over with lichens or not. In their shape and size, whether at rest or flying, they closely resemble the species of Noctuidae. They differ as a rule, however, in their slower flight, and in resting on the bark or among the leaves of trees, not nestling in grass or low herbage. About the Publisher Forgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.com This book is a reproduction of an important historical work. Forgotten Books uses state-of-the-art technology to digitally reconstruct the work, preserving the original format whilst repairing imperfections present in the aged copy. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in our edition. We do, however, repair the vast majority of imperfections successfully; any imperfections that remain are intentionally left to preserve the state of such historical works.
Author: National Academy of Sciences
Publisher: Forgotten Books
ISBN: 9780656047338
Category : Science
Languages : en
Pages : 354
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Book Description
Excerpt from Memoirs of the National Academy of Sciences, Vol. 1 Those portions of the computations which I have not made in person have been made at my expense, and I desire to express my thanks to my pupils and assistants, Messrs. John N. Stock well, erving winslow, william H. Palmer, S. C. Chandler, jr., and S. S. Eastwood, for their valuable aid. Mr. Winslow has taken part in all the computations from the beginning. The catalogue contains 6497 observations of 2907 stars situated between the parallels of 500 north and 355 south declination. About the Publisher Forgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.com This book is a reproduction of an important historical work. Forgotten Books uses state-of-the-art technology to digitally reconstruct the work, preserving the original format whilst repairing imperfections present in the aged copy. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in our edition. We do, however, repair the vast majority of imperfections successfully; any imperfections that remain are intentionally left to preserve the state of such historical works.
Author: National Academy of Sciences
Publisher:
ISBN: 9781330478349
Category : Science
Languages : en
Pages : 324
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Book Description
Excerpt from Memoirs of the National Academy of Sciences, Vol. 2 Sir: I have the honor to transmit to you, through the hands of Professor Coffin, the report of the committee of the Academy, to which was intrusted the arrangements for securing observations of the eclipse of May, 1883. It contains the reports and observations of Professor Holden and his associates in the expedition, and I have, in compliance with a request of the committee. prefixed a brief introduction, giving an account of the proceedings of the committee and of the organization of the party. About the Publisher Forgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.com This book is a reproduction of an important historical work. Forgotten Books uses state-of-the-art technology to digitally reconstruct the work, preserving the original format whilst repairing imperfections present in the aged copy. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in our edition. We do, however, repair the vast majority of imperfections successfully; any imperfections that remain are intentionally left to preserve the state of such historical works.
Author: National Academy of Sciences
Publisher: Forgotten Books
ISBN: 9780365404194
Category : Social Science
Languages : en
Pages : 612
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Book Description
Excerpt from Memoirs of the National Academy of Sciences, 1941, Vol. 23 3. Observations and measurements on the members of the National Academy of Sciences. By Ales Hrdliéka 1 - 108. About the Publisher Forgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.com This book is a reproduction of an important historical work. Forgotten Books uses state-of-the-art technology to digitally reconstruct the work, preserving the original format whilst repairing imperfections present in the aged copy. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in our edition. We do, however, repair the vast majority of imperfections successfully; any imperfections that remain are intentionally left to preserve the state of such historical works.
Author: U. S. National Academy of Sciences
Publisher: Forgotten Books
ISBN: 9780656228553
Category : Science
Languages : en
Pages : 776
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Book Description
Excerpt from Memoirs of the National Academy of Sciences, Vol. 8 This work was undertaken at the instance of Dr. John S. Billings, Director of the Laboratory of Hygiene, University of Pennsylvania, with the view of obtaining, if possible, some explanation, from a bacteriological standpoint, of the greater mortality among persons living in houses built on made ground over those living on virgin soil. In some cities, as Washington and New York, filled localities can be mapped out and the course of old runs followed by the higher death rate in these districts. N 0 positive opinion can be based on the data so far obtained, and these notes are presented mainly as a small contribution to our knowledge of the bacteria of the soil. In the prosecution of the work I have had the advice of Dr. Billings and of Dr. A. C. Abbott, first assistant, to both of whom I am much indebted. About the Publisher Forgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.com This book is a reproduction of an important historical work. Forgotten Books uses state-of-the-art technology to digitally reconstruct the work, preserving the original format whilst repairing imperfections present in the aged copy. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in our edition. We do, however, repair the vast majority of imperfections successfully; any imperfections that remain are intentionally left to preserve the state of such historical works.
Author: U. S. National Academy of Sciences
Publisher: Forgotten Books
ISBN: 9780332652955
Category : Science
Languages : en
Pages : 424
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Book Description
Excerpt from Memoirs of the National Academy of Sciences, 1884, Vol. 3: Part 1 For the percentage transmitted by glass B were obtained the values 60 per per cent., and 58 per cent., giving a mean of 55 per cent. About the Publisher Forgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.com This book is a reproduction of an important historical work. Forgotten Books uses state-of-the-art technology to digitally reconstruct the work, preserving the original format whilst repairing imperfections present in the aged copy. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in our edition. We do, however, repair the vast majority of imperfections successfully; any imperfections that remain are intentionally left to preserve the state of such historical works.
Author: National Academy of Sciences
Publisher: Forgotten Books
ISBN: 9781396346774
Category : Science
Languages : en
Pages : 1000
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Book Description
Excerpt from Memoirs of the National Academy of Sciences, 1922, Vol. 16 Chief, bureau OF biological survey, united states department OF agriculture. About the Publisher Forgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.com This book is a reproduction of an important historical work. Forgotten Books uses state-of-the-art technology to digitally reconstruct the work, preserving the original format whilst repairing imperfections present in the aged copy. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in our edition. We do, however, repair the vast majority of imperfections successfully; any imperfections that remain are intentionally left to preserve the state of such historical works.
Author: United States National Academy Sciences
Publisher: Forgotten Books
ISBN: 9780656848256
Category : Science
Languages : en
Pages : 470
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Book Description
Excerpt from Memoirs of the National Academy of Sciences, Vol. 10 It is evident, however, that any nonhomogeneity or figure error which is symmetrical with respect to the center of the ring can not be detected by observations on the period; hence the necessity of comparing results with a number of rings. With this in mind, five forgings for rings were obtained, of which one was broken during construction; but on account of the great labor involved in making a finished ring, only two have been completed and used. About the Publisher Forgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.com This book is a reproduction of an important historical work. Forgotten Books uses state-of-the-art technology to digitally reconstruct the work, preserving the original format whilst repairing imperfections present in the aged copy. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in our edition. We do, however, repair the vast majority of imperfections successfully; any imperfections that remain are intentionally left to preserve the state of such historical works.
Author: National Academy of Sciences (U S )
Publisher: Wentworth Press
ISBN: 9780530653945
Category : History
Languages : en
Pages : 552
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Book Description
This work has been selected by scholars as being culturally important, and is part of the knowledge base of civilization as we know it. This work was reproduced from the original artifact, and remains as true to the original work as possible. Therefore, you will see the original copyright references, library stamps (as most of these works have been housed in our most important libraries around the world), and other notations in the work. This work is in the public domain in the United States of America, and possibly other nations. Within the United States, you may freely copy and distribute this work, as no entity (individual or corporate) has a copyright on the body of the work. As a reproduction of a historical artifact, this work may contain missing or blurred pages, poor pictures, errant marks, etc. Scholars believe, and we concur, that this work is important enough to be preserved, reproduced, and made generally available to the public. We appreciate your support of the preservation process, and thank you for being an important part of keeping this knowledge alive and relevant.
Author: National Academy Of Sciences
Publisher: Forgotten Books
ISBN: 9780265930571
Category :
Languages : en
Pages : 206
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Book Description
Excerpt from Memoirs of the National Academy of Science, 1927, Vol. 19 From the various considerations already adduced it Will be quite clear that no general philosophy of petrogenesis should be based upon a study of a portion of the 1gneous recks alone, however complete-it might be' in regard to geological, petrographical, and physico-che'mical circumstances; and therefore, since no study of the intermediate and acid types of normal and alkaline 1gneous rocks has been made by the writer comparable in detail with those upon basic igneous rocks here given, it must be recognized that the generalizations which follow are derived perhaps too exclusively from the' study of basic rocks. If, however, they are found to be an adequate statement of the modes of occurrence of such rocks, they may then be combined with the results of s1m11ar studies upon the other types of rocks into a general petrogenetic theory. While no invariable rules for mode of occurrence of basic intrusive rocks seem yet dis coverable, there emerge from the studies which follow the conception of several modes of occur 'rence, so frequently represented that they' seem to result from fundamental principles of petrogenesis, while the exceptions to these are especially worthy of study, .s1nce in all probability they will throw most light upon the nature of the controlling conditions and the relationships to one another of apparently distinct modes of occurrence. About the Publisher Forgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.com This book is a reproduction of an important historical work. Forgotten Books uses state-of-the-art technology to digitally reconstruct the work, preserving the original format whilst repairing imperfections present in the aged copy. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in our edition. We do, however, repair the vast majority of imperfections successfully; any imperfections that remain are intentionally left to preserve the state of such historical works.
