VOL XLIV, NO. 518 



FEBRUARY, 1910 



THE 



AMERICAN 



NATURALIST 



A MONTHLY JOURNAL 



Devoted to the Advancement of the Biological Sciences with 

 Special Reference to the Factors of Evolution 



CONTENTS 



Pag* 



I. A Mendelian Interpretation of Variation that is Apparently Continuous. 



Professor EDWARD M. EAST 65 



II. Color Inheritance in Lychnis dioica L. Dr. GEORGE HARRISON 8 HULL . 83 

 1H. Is Regeneration a Repetition of the Ontogenetic and Phylogenetic Processes ? 



SERGIUS MORGULIS 92 



IV. Genetical Studies on (Enothera. BRADLEY MOORE DAVIS . - . .108 



THE SCIENCE PRESS 



LANCASTER, PA. GARRISON, N. Y. 



NEW YORK : SUB-STATION 84 



