32 SOUTHERN CALIFORNIA ACADEMY OF SCIENCES 
and Harvard observatories have most cheerfully and generously responded 
to our communications. We hope to secure from Prof. William Ham- 
mond Wright of Lick Observatory a paper upon Eros, which asteroid 
he has been studying during the last two years from the observatory 
in the Andes of Chile, where he was sent by the State University for 
this work. 
The Academy has been presented with a very valuable refractor of 
41% inches objective, which is now in the possession of this section, and 
with which much good work has been done, and it will.be in use by mem- 
bers during the opposition in July of Mars. 
Respectfully submitted, 
~ HOLDRIDGE O. COLLINS, 
Secretary of the Astronomical Section.. 
Los Angeles, Cal., June 5, 1907. 
BIOLOGICAL SECTION. 
The interest shown in the affairs of this section of the Academy has: 
been very gratifying to its members. Ten successful regular meetings 
have been held during the past year, which must be understood to exclude 
July and August. The average attendance at the meetings has been 
ahout twenty-five persons, including visitors. The speakers have beem:: 
Prof. E. R. Miller of the Normal School. 
Prof. Ulrey of the University of Southern California. 
Dr. Bebb of the Dental College. 
Dr. E. L. Leonard, City Bacteriologist. 
Prof. Gilbert of the High School. 
Mr. Fred C. Luck of Whittier. 
Dr. C. A. Whiting, the chairman of the section, and 
Prof. N. C. Gardiner of the Polvtechnie High Schol.. 
Among the subjects have been the following: 
The Life History of the Salamander, ‘Autodax. 
Some Problems of. Inheritance. 
Teeth. 
Immunity. 
The Reptiles of Los Angeles County. 
The Unicellular Organism. 
The Native Spiders. 
The Physiology of the Cell. 
This series of lectures has aroused an interest and called out am 
attendance which entitles the Biological Section to take a high rank 
as a scientific association. 
At the May meeting the officers for the past year were re-elected,, 
and the prospects for another year of good work seem bright. 
C. A. WHITING, Chairman. 
BOTANICAL, SECTION. a 
The Botanical Section has held three meetings this season, all of 
which have been chiefly devoted to the examination and determination 
of herbarium specimens from California and Arizona. 
Two papers have been formally read, viz: ‘‘A trip to Rock Creek,’” 
and ‘‘Some Changes in Our Weeds.’’ 
As the result of the season’s work, two new specimens have beem 
