July 15, 1921] 



SCIENCE 



47 



at 9 o'clock, on Friday morning and 2 o'clock 

 on Friday afternoon, August 5. An excursion 

 . to Lick Observatory, Mount Hamilton, is 

 planned for the afternoon and evening of Sat- 

 urday, August 6. All members of the Ameri- 

 can Association for the Advancement of Sci- 

 ence desiring to make this trip should com- 

 municate with Mr. W. F. Meyer, Students' Ob- 

 servatory, University of California. 



The American Physical Society 



Theodoke Lyman,- president, Harvard University. 



D. C. Miller, secretary, Case School of Applied 

 Science. 



E. P. Lewis, local secretary for the Pacific Coast, 

 University of California. 



The American Physical Society will hold a 

 meeting on August 4, from 9 :30 a.m. to 12 :00. 



American Phytopathologic<il Society, Pacific Di- 

 vision 



H. S. Eeed, president, Citrus Experiment Station, 

 Riverside. 



S. M. Zeller, secretary-treasurer, Oregon Experi- 

 ment Station. 



The American Phytopathological Society, 

 Pacific Division, will hold four sessions for the 

 discussion of diseases of the deciduous fruits, 

 semi-tropical fruits, cereals and potato, Au- 

 gust 4 to 6. 



California Section, American Chemical Society 

 William C. Bray, chairman. University of Cali- 

 fornia, Berkeley. 

 Lloyd W. Chapman, secretary-treasurer, 5.31 Rialto 

 Building, San Francisco. 



The affiliated sections of the American 

 Chemical Society will hold a joint meeting on 

 August 5, at 9 :00 o'clock. 



California Section, The Society of American 

 Foresters 



Donald Bruce, chairman. University of Califor- 

 nia, Berkeley. 



William C. Hodge, secretary-treasurer, 425 Call 

 Building, San Francisco. 



The various sections of The Society of 

 American Foresters will hold a joint meeting 



with the Western Society of Naturalists and 

 The Ecological Society of America. 



Cooper Ornithological Club 



Northern Division 



Curtis Wright, Jr., president, 6436 Benvenue 



Ave., Oakland, Calif. 

 Mrs. James T. Allen, secretary, 37 Mosswood 

 Koad, Berkeley. 



Southern Division 



LOYE Holmes Miller, president. State Normal 

 School, Los Angeles. 



L. E. Wyman, secretary. Museum of History, Sci- 

 ence and Art, Los Angeles. 

 The Cooper Ornithological Club will hold 



a meeting on the evening of August 3 at 8 



o'clock in Room 9, Museum of Vertebrate 



Zoology, University of California. 



The Ecological Society of America 

 Stephen A. Forbes, president. University of Il- 

 linois, Urbana, Illinois. 

 A. O. Weese, secretary-treasurer, Vivarium Build- 

 ing, Champaign, Illinois. 



The Ecological Society will hold joint meet- 

 ings on August 4 and 5 with the Western So- 

 ciety of Naturalists, the Pacific Fisheries So- 

 ciety and The Society of American Foresters. 



Pacifia Coast Entomological Society 

 Edwin G. Van Dyke, president. University of Cal- 

 ifornia, Berkeley. 

 Frank E. Blaisdell, Sr., secretary-treasurer, 1520 

 Lake St., San Francisco. 



A program has been arranged for August 

 6. There wiil be a dinner on August 4 and 

 a field excursion on August 7. 



Pacific Fisheries Society 



John N. Cobb, president. University of Washing- 

 ton, 



George F. Sykes, secretary, Oregon Agricultural 

 College. 



The Pacific Fisheries Society will hold two 

 sessions during the forenoons of August 4 and 

 5. Papers will be presented dealing with the 

 artificial propagation of fishes, and other 

 subjects pertaining to the conservation of 

 the fisheries. 



