The American Naturalist 



A Monthly Journal, e.tabli»hed in 1867, Devoted to the Advancement of the Biological Science* 

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



OONTENT8 OF THE JUNE NUMBER 



ThePla<«ofPlant Responses hi the Categories of Sensl- 

 The Larva and Spat o* the Canadian Oyster. Dr. J. Saf- 



N ° te Ao^M— D^flein's Lehrbueh der Protozoenkunde : 



A Consideration of the "Species Plantarum"of Linnaeus 



of Cryptogams. Professor W. G. Farlow. 

 Notes on Some Beaufort Fishes. E. W. Gudgeb. 

 On the Efl *ct ofExternal Conditions on the Reproduc- 



H. B. Ward; Deseri Plants, WilmamL.' Bray. 



CONTENT8 OF THE AUGUST NUMBER 



Chromosomes and Heredity. Professor T. H. Mobgaw. 

 Spiegler»s "White Melanin" as Related to Dominant or 



Shorter Articles and Correspondence: A Pickwickian 

 Contribution to Our Knowledge of Wasps: Professor 



Alg83. Dr. Bradlxy Moore Davis. 







Single Number 35 Cents Yearly Subscription, $4.00 



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