BULLETIN 



OF THE 



Southern California Academy of Sciences 



JANUARY, 1918 



Volume XVII, Part I. 



COMMITTEE ON PUBLICATION 



Holdridge Ozro Collins, L.L.D., Cliairman 

 Anstruther Davidson, C. M., M. D. William A, Spalding 



CONTENTS 



Page 



Editorial 3 



Professor A. B. Ulrey 



The Mt. Wilson lOO-inch Reflector 



Californiana 



Illumination of the San Francisco Exposition 7 



Eclipse of the Sun, June 8, 1918 ; . . . 13 



Gnaphalium beneolens 17 



Poi 17 



Chemists' present opportunities and duties 18 



Altitude of bird flight 21 



Education and the Museum 22 



A Pacific voyage of Scientists 24 



Transactions of the Academy 27 



