/^ 7 he West American Scientist. 



A review of the genus Sclerurus of Swainson. By Robert 

 Ridgway. 



Descriptions of New Ichneumonidae in the collection of the U . 

 S. National Museum. By William H. Ashmead. 



Description of two new species of snakes from California. By 

 Leonhard Stejneger. 



Birds Collected on the Galapagos Islands in 1888. By Robert 

 Ridgway. 



Preliminary reports on the collection of mollusca and brachio- 

 poda obtained in 1887-88 by the steamer Albatross. By W. H. 

 Dall. 



Description of the yellow finned trout of Twin Lakes, Colorado. 

 By D. S. Jordan and B. W. Evermann. 



Notes on a third collection of birds made in Kauai, H. I., by 

 Valdemar Knudsen. By Leonhard Stejneger. 



Notes on the occurrence of Gillichthys y-canda at San Diego, 

 California. By Charles A. Gilbert. 



Contributions toward a monagraph of the Noctuidae of temper- 

 ate North America. By John B. Smith. 



The twelve preceding pamphlets are irom the Proceedings U. 

 S. National Museum, Vol. XII. Received from the Smithsonian 

 Institution. 



New California Homoptera. By E. P. Vanduzee. (Entomo- 

 logica Americana, Vol. VI.) Reprinted. From D.W.Coquillett. 



EXCHANGES. 



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