Contents
The Relationships of Certain Birds as Indicated by Their Egg White Proteins
Robert A. Mccabe and Harold F. Deutsch
In Memoriam: Florence Merriam Bailey
Paul H. Oehser
Principles and Practices in Collecting and Taxonomic Work
Josselyn Van Tyne
A Trans-gulf Migration
Harvey R. Bullis Jr. and Frederick C. Lincoln
The Air Sacs of the Loon
H. T. Gier
Molting of Northern Yellow-throat in Southern Michigan
Robert E. Stewart
Some Birds from the Palenque Region of Northeastern Chiapas, Mexico
Richard E. Tashian
The Sixty-ninth Stated Meeting of the American Ornithologists' Union
Olin Sewall Pettingill Jr.
Recent Literature
The Auk
Obituaries
The Auk
General Notes
White Pelican from the Pleistocene of Oklahoma
Robert M. Mengel
The Identity of Anser Nigricans Lawrence 1846
Jean Delacour and John T. Zimmer
Records of the Black Pigeon Hawk, Falco Columbarius Suckleyi, in Utah
Richard D. Porter and Howard Knight
Sparrow Hawk, Falco Sparverius, Eats Bread
Frederick E. Warburton
Display of Black-capped Chickadee, Parus Atricapillus
Margaret B. Hickey
Starlings, Sturnus Vulgaris, Catching Insects on the Wing
Hervey Brackbill
Starlings, Sturnus Vulgaris, Eating Monarch Butterflies
Maurice Brooks
Nesting, of Bell's Vireo, Vireo Bellii, in Louisiana
Horace H. Jeter
Number of Contour Feathers on a Cowbird, Molothrus Ater
Leonard W. Wing
Scaly Leg" (cnemidocoptiasis) in the Red-winged Blackbird, Agelaius Phoeniceus"
John R. Olive and Vincent Schultz
Covers
Front Matter
The Auk
Back Matter
The Auk