Excerpt from An Account of the Birds and Mammals of the San Jacinto Area of Southern California: With Remarks Upon the Behavior of Geographic Races on the Margins of Their Habitats The first field work formally undertaken by the Museum of Vertebrate Zoology, after its inauguration in March, 1908. Was centered in the San Jacinto Mountains of southern California. The contiguous regions on both the desert and Pacific sides were included in the explorations. This program was settled upon in part because this particular area remained at that time the least known part of southern California as regards its vertebrate fauna, and in part because there were likely to be presented here in accentuated degree peculiar distributional features dependent upon the great altitude of the mountain itself and the close juxta position on either hand of the sharply contrasted faunas of the desert and coast regions. Furthermore, there were already available the collections and information resulting from the senior author's work in the San Bernardino Mountains, since published (grinnell, This afforded a basis for a systematic plan of action looking towards verification of certain previously entertained hypotheses. During the five years' interim, from the date of concluding the San Jacinto field work until the final compilation of the present report, much pertinent data has been secured from studies of related areas. These additional sources of information have enabled 1is to interpret the distributional problems con cerned with the San Jacinto area as we could not have done otherwise. All of this contributory faunistic work, as well as the main undertaking, has been made possible through the con tinned financial support provided by Miss Annie M. Alexander, who has thus shown in an effective way her belief in the ultimate value of efforts expended in this line of scientific inquiry. 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.