Excerpt from A Bibliography of Plant Genetics (43) oayana 10 resistant TO mosaic disease IN sugar cane. Fla. Dept. Agr. Quart Bul. 85. 1926. (44) A new resistant strain OF tobacco [havana Wis. Agr. Expt. Sta. Bul. 1926. (45) realisation eyperimentale DE l'hybride entre l'aspio ET LA lavande. (on experimental production OF the hybrid between aspic and laven der.) Parfum. France - 325, illus. 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.
Excerpt from Plant Genetics It should be realized that genetics is a natural out growth from the study of organic evolution. The con ception of evolution began as a speculation, but became scientific in connection with the work of lamarck and darwin. In such work the method used was that of Observation and inference. Facts were observed and an explanation was devised that would relate them. Resemblances and differences among species were noted, and it was inferred that these indicated degrees of relationship. It was assumed that closely related species must have had a comparatively recent common ancestry and that more distantly related species must have had a more remote common ancestry. Through comparisons of structure and of geographical distribution systems of phylogeny have been inferred, and an outline of the evolution of the plant and animal kingdoms has been the result. All of these conclusions are based upon comparison and inference. This method reached its extreme application in the work of darwin, whose observations included a range of forms and an extent of time unequaled by any pre ceding student oi evolution. It may be said that in darwin's work the method of comparison and infer ence reached the limit of its possibilities. The students of evolution were chiefly concerned With explaining the Changes that resulted in phylogeny. In other words. 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.
Excerpt from Plant-Breeding Having been thrice reprinted, the second edition was issued in 1902, although, through an inadvertence, it was not so marked on the title-page. Few text-changes were made, but the bibliography was included. 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.
Excerpt from Heredity and Evolution in Plants Chapters X, Geographical Distribution, and XIII, The Great Groups of Plants, and the Bibliography are new. N o attempt has been made to cite the voluminous periodical literature in the Bibliography, but needless to state, this has been freely consulted and drawn upon. Numerous citations are given as foot-notes, especially in Chapter X. In going over the chapters it also became evident that since, in order to read them understandingly, one must have a clear conception of the facts of the lift history of a vascular plant, it would be best to introduce from the Fundamentals of Botany the three chapters (viz. XII XIV) on the life history of the fern. As stated in the Preface to that book, while the ultimate problem of botany is the development of the kingdom of plants, the more immediate and fundamental problem is the development of the individual plant. Ontogeny is fundamental because without a knowledge of its processes the processes of phylogeny cannot be comprehended. Phylogeny is the ultimate problem because its complete solution in volves an orderly description of all the phenomena of plant life, and their relation to each other. The author is specially indebted to Dr. 0. E. White, curator of plant breeding in the Brooklyn Botanic Garden, for a careful reading of the entire manuscript and for many valuable suggestions; also to Mr. Norman Taylor, curator of plants, in connection with Chapter X, and to Dr. Alfred Gundersen, associate curator of plants in the same institution, for numerous constructive criticisms in connection with Chapter XIII. The diagram show ing the apparent affinities and approximate geological distribution of the main groups of vascular plants (p. 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.
Excerpt from Contributions From the Laboratory of Plant Genetics, Vol. 1: 1909-1913 In a previous paper two series of data were presented, each giving the results from one year's selection of the extremes of a highly variable but accurately determined fluctuating char acter of the common potato, Solanum tuberosum L., when these extremes were reproduced asexually. The character under con sideration was the total content of nitrogen determined by the Kjeldahl process. In one series, extremes averaging per cent. And per cent. In total nitrogenous matters when cal culated to water-free basis, yielded crops averaging per cent. And per cent, respectively; in the other series, extremes averaging per cent. And per cent. In total nitrogenous matters, yielded crops averaging per cent. And per cent, respectively. These figures were due apparently to a correlation between mother and daughter tubers - ii one may be allowed to use such terms - and yet the evidence even at that time did not appear to the writer to justify a conclusion that asexual fluctuations were inherited. 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.
In the small “Fly Room†at Columbia University, T.H. Morgan and his students, A.H. Sturtevant, C.B. Bridges, and H.J. Muller, carried out the work that laid the foundations of modern, chromosomal genetics. The excitement of those times, when the whole field of genetics was being created, is captured in this book, written in 1965 by one of those present at the beginning. His account is one of the few authoritative, analytic works on the early history of genetics. This attractive reprint is accompanied by a website, http://www.esp.org/books/sturt/history/ offering full-text versions of the key papers discussed in the book, including the world's first genetic map.
