32 SOUTHERN CALIFORNIA. ACADEMY OF SCIENCES. 



Calendar for March. 



March 4. Astronomical Section me. ts at 724 S. Broadway. Informal 

 talk on the International Date L,ine, introduced by Mr. Melville Dozier. 



March 11. General meeting of the Academy at the Ebell Hall, Broad- 

 way. Lecture by Prof. Willis m Wallace Campbell, Director of the Lick 

 Observatory. Subject: ''The Motion of the Solar System." Illustrated 

 with numerous lantern slides. Also a few slides showing the nebula sur- 

 rounding Nova Persei, and slides of photographs of nebulae obtained by the 

 late Director Keeler. 



Referring to the Lick Observatory, Prof. Simon Nemcomb says: "But 

 its most epoch-making work is due in recent years to Campbell, by meas- 

 urements ot the motion of stars in the line of sight with the spectroscope. 

 Armed with the best spectrograph that human art could make, he has, by 

 the introduction of every refinement in his method, brought into these 

 measures a degree of precision never before reached." 



March 18. Biological Section meets at the State Normal School. 



March 24. Botanical Section meets at 85 Temple Block. 



March 25. Geological Section meets at the Southwest Miners' Associa- 

 tion, First and Main Streets. Subject: "The Oynx Deposits of Arizona." 



