Makch 16, 1917] 



SCIENCE 



253 



be given in San Francisco under the auspices 

 of the California Academy of Sciences, at 

 which the visiting members of the American 

 Association and of affiliated societies will be 

 welcome. The president of the academy, Mr. 

 C. E. Grunsky, of San Francisco, will preside, 

 and a number of men of science in various 

 fields of investigation have been invited to 

 give informal addresses. 



The Astronomical Society of the Pacific will 

 hold sessions on Thursday and Friday, April 

 5 and 6. Some twenty papers are expected 

 from the staff members of the Lick Observa- 

 tory, the Mount Wilson Solar Observatory, 

 the department of astronomy at the Univer- 

 sity of California, and from others. A feature 

 of especial interest will be a paper by Dr. 

 George E. Hale, director of the Mount Wilson 

 Solar Observatory, covering many details of 

 the investigational work being carried on at 

 this observatory, illustrated with motion pic- 

 tures. 



The Pacific Section of the American Mathe- 

 matical Society will hold sessions on Satur- 

 day, April 7. 



The American Physical Society will hold 

 sessions on Saturday, April 7, and a dinner 

 for physicists will be arranged at Stanford 

 University for Saturday evening. 



The California Section of the American 

 Chemical Society will hold sessions on Satur- 

 day, April 7. 



The Cordilleran Section of the Geological 

 Society of America will hold sessions on 

 Thursday and Friday, April 5 and 6. Cer- 

 tain of the sessions will be correlated with 

 those of the Seismological Society of Amer- 

 ica, and of the Pacific Coast Branch of the 

 Paleontological Society of America, which will 

 also meet upon the same days. The program 

 of the Seismological Society will include a 

 paper by Dr. H. O. Wood, of the Hawaiian 

 Volcano Observatory, on " The Earthquake 

 Problem in Western United States," and a 

 paper by Mr. A. H. Palmer, of the United 

 States Weather Bureau, San Francisco, on 

 " Earthquakes in California in 1916." An 

 extensive program for the Paleontological So- 

 ciety is in preparation dealing with Tertiary 



faunas of the Pacific coast and the influence 

 of climate upon certain of these faunas. 



The Le Conte Club will hold its customary 

 dinner for geologists, paleontologists, geog- 

 raphers and seismologists on the evening of 

 Friday, April 6. 



The Western Society of ISTatm^alists will 

 hold sessions on Friday, April 6. Contribu- 

 tions from members of the society will occupy 

 the morning session of Friday and the after- 

 noon session will be devoted to a group of spe- 

 cial papers upon the general topic, " The 

 Present-Day Bases for the Evolution Theory." 



On Saturday, April 7, an excursion will be 

 conducted, under the auspices of the Zoolog- 

 ical Field Club of Stanford University, to the 

 recently completed bungalow of this club in 

 the Coast Eange foothills, which all visiting 

 members of the biological societies partici- 

 pating in this meeting are cordially invited to 

 attend. Members of the Cooper Ornithological 

 Club will also join in this excursion. 



The Pacific Slope Branch of the American 

 Association of Economic Entomologists will 

 hold sessions on Thursday and Friday, April 

 5 and 6. 



Headquarters and Registration. — The regis- 

 tration headquarters of the Pacific Division 

 for this meeting will be in the rotunda of the 

 zoology building, Stanford University. All 

 those attending sessions of the Stanford meet- 

 ing, whether members of the American Asso- 

 ciation or participating societies or not, are 

 requested to register at the headquarters office, 

 and to secure there the general program for 

 the meetings. 



Mail and Telegrams. — Mail for persons at- 

 tending the Stanford meeting should be ad- 

 dressed in care of the American Association 

 for the Advancement of Science, Stanford 

 University, California. Attention is called to 

 the fact that mail should be addressed to the 

 post office known as " Stanford University," 

 and not to Palo Alto, while telegrams should 

 be sent to the Palo Alto oflice of the Western 

 Union Telegraph Company, marked, " to be 

 delivered at Stanford University, care of the 

 American Association for the Advancement 



