Vol. VII] 



GRUNSKY— PRESIDENT'S REPORT FOR 1917 



m 



September 19. "Mechanism of the color changes in the Florida chame- 

 leon." 



Dr. Charles E. von Geldern. 



October 17. "Climatic and geographic conditions of California during 

 Tertiary time." 



Dr. B. L. Clark, Instructor, Department of Paleontol- 

 ogy, University of California. 



November 21. "The work of the Fish and Game Commission." 



J. S. Hunter, Assistant Executive Officer California 

 Fish and Game Commission. 



December 19. "A collecting trip to Japan, China and Tibet." 



Edmund Heller, American Museum of Natural His- 

 tory. 



Sunday afternoon lectures delivered in the Museum Building 

 during the year 1917. 



January 14. "A total eclipse of the sun." 



Dr. R. G. Aitken, Astronomer, Lick Ohservatory. 

 January 21. "The edible crabs and fishing methods on the Pacific 

 Coast." 



Dr. Frank W. Weymouth, Assistant Professor of 



Physiology, Stanford University. 



January 28. "Alexander von Humboldt." 



Dr. James Perrin Smith, Professor of Paleontology, 



Stanford University. 

 February 4. "Trees and shrubs of the Grand Canon." 



Miss Alice Eastwood, Curator of Botany, California 



Academy of Sciences." 



February 11. "The Moon." 



Dr. R. G. Aitken, Astronomer, Lick Observatory. 



February 18. "The cruise of the Schooner 'Academy' 1905-1906." 



Mr. J. S. Hunter, Assistant Executive Officer, Cali- 

 fornia Fish and Game Commission. 



February 25. "Insect control as a part of national forest protection." 

 Mr. Ralph Hopping, LT. S. Forest Service. 



March 4. "Evolution of parental and social instincts." 



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

 sity of California. 



March 11. "The Nebulae." 



Dr. H. D. Curtis, Astronomer, Lick Observatory. 



March 18. "Liquid Air." 



Dr. E. C. Franklin, Professor of Chemistry, Stanford 

 University. 



March 25. "Habits of solitary wasps." 



Dr. Isabel McCracken, Assistant Professor of Ento- 

 mology, Stanford University. 



April 1. "Coffee and tea plantations in India and Ceylon." 



Dr. C. A. Kofoid, Professor of Zoology, University of 

 California. 



April 8. "How astronomical discoveries are made." 



Dr. H. D. Curtis, Astronomer, Lick Observatory. 



April 15. "Man and the weather." 



Prof. Earle G. Linsley Head of the Department of 

 Science, Mills College. 



