Volume 69, Issue 1 (1970)
Southern California Academy of Sciences can be found at SCAS.
A New Subgenus and Two New Species of Hexidionis (Acarina, Trombiculidae) from North America
Richard B. Loomis and James L. Lucas
Sexual Differences in Foraging Behavior of White-Headed Woodpeckers
Robert F. Koch, Armand E. Courchesne, and Charles T. Collins