The University of Chicago 

 Science Series 



EDITORIAL COMMITTEE 



ELIAKIM HASTINGS MOORE. Chairman 



JOHN MERLE COULTER PRESTON KYES 



The following volumes are bound uniformly in maroon cloth, 

 small i2mo: 



The Evolution of Sex in Plants. By JOHN Merle Cocjlter. x+140 



pages. $1.25, postpaid $1.35. 

 Indioiduality in Organisms. By CHARLES MANNING ChiLD. X+212 



pages. $1.50, postpaid $1.65. 

 The Origin of the Earth. By ThomaS C. Chamberlin. xii+272 pages. 



$1.75, postpaid $1.85. 

 Finite Collineation Groups. By Hans F. Blichfeldt. xii+194 pages. 



$1.50, postpaid $1.60. 

 A Chemical Sign of Life. By Shiro Tashiro. x+142 pages. $1.25, 



postpaid $1.35. 

 The Biology of Twins. By HoRATio Hackett Newman. X+186 



pages. $1.50, postpaid $1.60. 

 The Physiology of Twinning. By HORATIO Hackett Newman. x+232 



pages. $1.75, postpaid $1.85. 

 Food Poisoning. By Edwin Oakes Jordan. viii+ii6 pages. $1.25, 



postpaid $1.35. 

 The Electron: Its Isolation and Measurement, and the Determination of Some 



of Its Properties. By ROBERT ANDREWS MiLLlKAN. xii+268 pages. 



$1.75, postpaid $1.85. 



The Living Cycads. By CHARLES JOSEPH CHAMBERLAIN. xiv+172 



pages. $1.50, postpaid $1.60. 

 Problems of Fertilization. By FRANK R. LiLLlE. xii+278 pages. $1.75, 



postpaid $1.85. 

 The Origin and Development of the Nervous System from a Physiological 

 Viewpoint. By Charles M, Child. xvii+296 pages. $1.75, 

 postpaid $1.85. 

 The Story of the Maize Plant. By Paul Weatherwax. xvi+ 248 pages. 



$1.75, postpaid $1.85. 

 The Antiquity of Disease. By RoY L. MOODIE. xiv+iso pages. $1.50, 



postpaid $1.60. 

 Algebras and Their Arithmetics. By LEONARD E. DiCKSON. xii+242 



pages. $2.25, postpaid $2.35. 

 Protoplasmic Action and Nervous Action. By RALPH S. LiLLIE. xiv+416 

 pages. $3.00, postpaid $3.10. 



VOLUMES FOR LATER PUBLICATION 

 Mechanics of Delayed Germination in Seeds. By W. Crocker. 

 Black-Body Radiation. By Charles E. Mendenhall. 

 The- Rigidity of the Earth and of Materials. By A. A. Michelson. 

 Linear Integral Equations in General Analysis. By Eliakim Hastings Moore. 



THE UNIVERSITY OF CHICAGO PRESS 



CHICAGO ..... ILLINOIS 



