SCIENCE -ADVERTISEMENTS 



The University of California Press 



Bcrkeler. California 2;0 Hadlion Avenne, New York 



An Investigation of the Abnormal 



Shedding of Young Fruits of the 



Washington Navel Orange 



By J. Eliot Cort and Robert W. Hodgson . . $i.oo 



Myths of the Southern Sierra Miwok. By S. A. 



Barrett 30 



The Matrilineal Complex. By Robert H.LowiE .15 



Notes on the Germination of Tobacco Seed. III. 

 Note on the relation of light and darkness to 

 Germination. By T. H. Goodspeed ... .05 



Thirty Year Synopsis Meteorological Observa- 

 tions made at Berkeley from July i, 1887, to 

 June 30, 1917. By Burton M. Varney .20 



Five New Five-toed Kangaroo Rats from Cali- 

 fornia. By Joseph Grinnell 05 



The above titles represent University of California 

 Publications in Agricultural Sciences, Botany, American 

 Archaeology and Ethnology, Pathology, and Zoology. 

 Other series published by the University of California 

 include: Entomology, Geography, Geology, Physiology, 

 and Psychology. 



Complete Lists of Titles and Prices will be sent 

 on Request 



Veblen and Young's 

 Projective Geometry 



Volume I, $4.00 



Volume II, $5.00 



For upper class and graduate 

 students in American universities. 

 These volumes give an exposition of 

 the principles of geometry, taking 

 account of certain modern concepts 

 and methods which have not yet 

 been given as important a place in 

 treaties as they have attained in 

 current thought. 



Volume I deals with the most gen- 

 eral parts of the subjects, while 

 Volume II deals with the morejim- 

 portant special branches derived 

 from the projective group. 



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