Proceedings of the California Academy of Sciences, 1918-1926, Vol. 2

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Excerpt from Proceedings of the California Academy of Sciences, 1918-1926, Vol. 2: Part TwoThe present paper consists Of Six parts. Part I is a brief sketch Of the men and writings that have been prominent in the advancement Of our knowledge Of the Tubinares. Part II treats of the geographic distribution Of the group. Numer ous distribution areas are recognized. Part III has a wider scope. The causes Of bird migration are considered from the view point of the migratory movements Of the Tubinares. Part IV relates to the variations of these birds in color, size, and external structure. Part V deals with their classification and nomenclature. Part VI is a repository of facts upon which the conclusions in the three preceding parts are largely based. It presents the results Of my study Of extensive series of the Tubinares and the outdoor Observations upon this group made by Mr. Edward Winslow Gifford, Mr. Rollo Howard Beck, and Dr. Alexander Sterling Bunnell during the ocean expeditions sent out by the California Academy Of Sciences.In the preparation of this paper I have received much as sistance from institutions and individuals. For the loan Of specimens I am indebted to Mr. Outram Bangs, Mr. A. C. Bent, Dr. Joseph Grinnell, Dr. Leonard C. Sanford, Mr. John E. Thayer, the State Of Oregon Fish and Game Commission, through Mr. Stanley G. Jewett, the Bernice Pauahi Bishop Museum, through Mr. John F. G. Stokes, the Department Of Zoology of Leland Stanford Junior University, through Prof. John O. Snyder, the Museum Of Vertebrate Zoology Of the University Of California, through Dr. Joseph Grinnell, the Carnegie Museum, through Mr. W. E. Clyde Todd, and the United States National Museum, through Dr. Charles W. Richmond. I am also under obligations to Mr. L. R. Reyn olds for the photographs Of museum specimens reproduced in the accompanying illustrations, to Mr. Samuel Levi for the original drawing of the homolographic chart, to Mr. Edward Winslow Gifford for the great series Of measurements, and lastly to my friend Of many years, Mr. Ransom Pratt, who has read most Of the manuscript Of this paper during its prep aration, and has made many suggestions that have added to the clearness Of the statements.About the PublisherForgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.comThis 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.