Contents of Volume X 



Editorial 5, 43 



The New Home of the Academy: 



Professor P. Giovanni Hagen, S. J.: 



The Twisting Pines of the California Coast: 



Convention of Astronomers on Mt. Wilson: 



John Daggett Hooker: 



The One-hundred Inch Reflector: 



The New Home of the Academy. 



Articles of Incorporation 25 



By Laws 29 



Roll of Members 33 



Botanical Records. New Anstruther Davidson, M. D. 11 



Bumble Bees of Los Angeles. . . .Anstruther Davidson, M. D. 66 



Louis A. Greata Theodore Payne 67 



John Daggett Hooker. In Memoriam. ... /I 'illiam H. Knight 46 



Lepidoptera of Southern California Fordyce Grinnell, Jr. 12 



Mollusks of Southwestern California. . .Edson and Hannibal 47 



Mt. Wilson Convention of Astronomers. .William H. Knight 15 



Notes on Mimicry of Two Sesiids Fordyce Grinnell, Jr. 67 



Notes on Natural History of California S. B. Parish 64 



The Twisting of Pines Anstruther Davidson, M. D. 9 



Transactions of the Academy 22, 69 



