A REVISION OF THE FORMS OF THE EDIBLE-NEST SWIFTLET, COLLOCALIA FUCIPHAGA (THUNBERG).

Washington, D.C.: GPO Magazine. Very Good. Soft cover. pp11-20. Removed from SMITHSONIAN INSTITUTION. PROCEEDINGS OF THE UNITED STATES NATIONAL MUSEUM, VOLUME 42, 1912. Bottom corners of first three leaves missing, with loss of three or four numbers on a chart on one page, else VG. In plastic report covers. From the introduction: "During the five years that have elapsed since the writer's revision of the genus Collocalia appeared, the United States National Museum has acquired considerable additional material in this group. These specimens show that there are several more forms of Collocalia fuciphaga worthy of recognition, and that, in consequence, the ranges and characters of other races are more or less in need of readjustment. The following synopsis of the subspecies of Collacalia fuciphaga will, therefore, take the place of the one previously published.".