viii The Biological Society of Washington. 



"A New Translation of Aristotle's History of Animals": 

 Theodore Gill. 



" The Insect Fauna of Telegraph Poles ": T. E. Snyder. 

 " The Domestication of Wild Animals": D. E. Lantz. 



February 18, 1911— 480th Meeting. 



The president in the chair and 45 persons present. 



General Wilcox reported having heard a flock of migrating 

 geese on February 14, and also noted that trailing arbutus may 

 be transplanted successfully if taken up with a mass of the soil 

 without loosening the roots. 



The following communications were presented: 



"The Mechanics of Cell Activity ": Carl L. Alsberg. 



" Some Cactus Insects, with special reference to Cochineal ": 

 W. I). Hunter. 



March 4, 1911 — 481st Meeting. 



Vice-President W. P. Hay in the chair and 95 persons present. 

 The following communications were presented: 

 " The Desert Country of Northern Lower California " : Dr. 

 W. J. Mixter. 



"Afoot across the British Columbia Rockies": George 



Mixter. 



E. A. Preble exhibited a series of skins of mammals and 

 birds secured by George Mixter and himself in the trip referred 

 to in the second communication. 



March 18, 1911— 482d Meeting. 



Vice-President W. P. Hay in the chair and 53 persons present. 



C. 1). Marsh reviewed briefly a recent paper on the Geo- 

 graphic Distribution of Diatoms, by Hollinger, published in 

 the Jena Zoologische Jahrbiich. 



The following communications were presented : 



" Raising Trailing Arbutus from the Seed " : F. V. Coville. 



Notes on Javan Natural History and the Salt Makers of 

 Tjihara, Java ": William Palmer. 



