The American Naturalist 



A Monthly Journal established in 1867. Demoted to the Adrancement of the Biological Sciences 

 with Special Reference to the Factor* of Organic Evolution and Heredity 



The ™ remF of* Erologi^^aliosophy. Professor 

 The Present Problems of Physiological Plant 



:r ' r. . 



neVries»« Species and Varieties, Da. Geobgk H. 



CONTENTS OF THE JULY NUMBER 



Selectionjudex Numbers amyheir Uae ^ln Breeding. 



Present ^Problems in Pltnt Ecolop y t Vegetation and 



A MdeCrajCsh wtth Some Female Organs. Professor 

 Present Problems in Plant Ecology : 



The Relation^* the^^iatic Factors to Vegetation. 

 Notes and^Uteratnre^: P^nt Fjrperiments^on the In- 



CONTENT8 OF SEPTEMBER NUMBER 



Remarkable Development of Starfishes on the Northwest 

 American Coatt: Uybridism; Multiplicity of Rays: 

 Teratology; Problems in Evolution; Geographical 



Noteaand"^ V ^ 



CONTENT8 OF THE OCTOBER NUMBER 



^CONTENTS OF THE NOVEMBER NUMBER 





v ' " ; . '■; ';!•< :.■.::■•••! r..-..f>- n--. 







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