SOUTHERN CALIFORNIA ACADEMY OF SCIENCES. 125 



TransaLctions for December, 1903 



ACADEMY OF SCIENCES. 



Los Angeles, California, November 2, 1903. 

 The regular monthly meeting of the Southern California Academy 

 of Sciences was held this evening at 940 South Figueroa Street. 

 President Cumnock occupied the chair. 

 No business was transacted. 

 The evening was occupied with a lecture by Professor Wm. M. Pris- 

 bie on ' ' Oxygen, ' ' illustrated with numerous experiments. A large au- 

 dience was in attendance, who thoroughly appreciated Professor Pris- 

 bie's lecture. 

 Adjourned. 



B. E. BAUMGAEDT, Secretary. 



BIOLOGICAL SECTION. 



Woman's Club House, November 9cli, 1903. 



The meeting was called to order by the chairman of the section. 

 The minutes of the last meeting meeting were read and approved. 



Two papers were read by title: "Concerning Pleas," by Prof. J. 

 J. Elvers; "The So-Called Kissing Bug," by Dr. A. Davidson. 



The lecture of the evening was deliverd by Prof. Jospeh Grin- 

 nell, on, ' ' The Midwinter Birds of Los Angeles. ' ' Among other in- 

 teresting facts the lecturer stated that careful observation had con- 

 vinced him that there are about two Audubon Warblers to the acre in 

 this part of California during the winter. This means that this species 

 of bird alone numbers some 12,800 in Pasadena, and as each one eats 

 about twelve hundred flies each day, they destroy daily about ihree 

 and a half millions of insects. 



The Cedar Wax-Wing has the habit of eating the berries of the 

 pepper tree and retaining them until the sweet layer of the berries is 

 dissolved. When this has occurred, the bird regurgitates the re- 

 mainder of the berries. 



Tne lecture of the evening was intensely interesting, and suggested 

 a great number of questions, many of which the lecturer answered. 



About seventy members and visitors were present. 



The meeting adjourned to meet again on the second Monday even- 

 ing in December, at which time Dr. Gamber will lecture on Malaria. 



C. A. WHITING, Secretary. 



GEOLOGICAL SECTION. 



Los Angeles, Cal., Nov. 23, 1903. 



The Geological Section met at the Woman's Club Eooms at 8 p. m. 

 Geo. W. Parsons in the chair. 



Prof. E. H. Fosdick, City Chemist, was introduced as 'the lecturer 

 of the evening. His subject was ' ' The Manufacture of Explosives. ' ' 



