360 



CALIFORNIA ACADEMY OF SCIENCES 



[Proc. 4th Sek. 



January 12. California's Recreation Ground, Her National Forest. 



R. F. Hammatt, Forest Examiner, United States Forest 

 Service. 



February 9. Trees and Shrubs of the Grand Canon. 



Miss Alice Eastwood, Curator, Department of Botany, 

 California Academy of Sciences. 



February 16. The Bacteriology of Peanut Butter. 



Dr. Ivan C. Hall, Department of Bacteriology, 

 University of California. 



February 23. Birds of Extreme Northern Alaska. 



Joseph Dixon, Economic Mammalogist, Museum of 



Vertebrate Zoology, University of California. 

 March 2. The Natural History and Control of California Ground 



Squirrels. 



Dr. Joseph Grinnell, Director, Museum of Vertebrate 



Zoology, University of California. 

 March 9. Some Philosophical Considerations in Mathematics. 



Dr. Rufus L. Green, Professor of Mathematics, 



Stanford University. 



March 16. Inheritance of Mental Ability. 



Dr. S. J. Holmes, Professor of Zoology, 

 University of California. 



March 23. The Natural History of some Bats. 



Tracy I. Storer, Field Naturalist, Museum of Verte- 

 brate Zoology, University of California. 



March 30. Mushrooms, Edible and Non-Edible. 



Prof. James I. W. McMurphy, Department of Botany, 



Stanford University. 

 April 13. Life History and Habits of Some Marine Crustacea. 



Prof. F. W. Weymouth, Department of Zoology, 



Stanford University. 

 April 20. The Hook-worm Campaign in the Mines of California. 



Dr. W. W. Cort, Assistant Professor of Zoology, 



University of California. 



April 27. Military Sanitation. 



Major W. B. Herms, Associate Professor of Parasitol- 

 ogy, University of California. 



May 4. Birds of the High Sierras and their Environment. 



Dr. William F. Bade, President, California Associated 

 Societies for Conservation of Wild Life. 



May 11. Hunting with a Camera. 



Paul J. Fair, Department of Exhibits, California 

 Academy of Sciences. 



September 14. Insect Life. 



Dr. E. C. Van Dyke, Assistant Professor of Ento- 

 mology, University of California. 



September 21. Sanitary Milk Production. 



Dr. George H. Hart, Associate Professor of Veterinary 

 Science, University of California. 



September 28. Forests and Forestry in California. 



Dr. W. Metcalf, Assistant Professor of Forestry, 

 University of California. 



October 5. Plant Breeding. 



Dr. E. B. Babcock, Professor of Genetics, 

 University of California. 



