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BULLETIN OF THE 



Southern California 



Academy of 



Sciences 



INDEX 



Page 



Butterflies of California, Dr. J. A. Comstock 5-6 



A Solo Flight in a Spherical Balloon, Dr. Ford A. Carpenter.... 7-20 



A Glimpse of the Einstein Theory, Wm. H. Knight 2 1-23 



Magnetism and Radio Activity, Wm. A. Spalding .'.24-28 



Deprandus Lestes, Dr. J. Z. Gilbert 29-30 



Distribution of Certain Trees in California, S. B. Parish 3 1-33 



Brickella Microphylla, G. L. Maxley 34-35 



Obituaries 36-42 



Volume XX, Part 1 

 April, 1921 



LOS ANGELES, CALIFORNIA 



i § 



I 



committee on publication 



William a. Spalding 



Anstruther Davidson, C. M.,M. C. 



Dr. John A. Comstock | | 



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