44 W^est A?nerica7i Scientist. 



cause this immunity is due. The tree is a species of Rhopala, of 

 a contorted appearance, and growing to about twenty feet in 

 height. A microscopical examination o^the tissue would be in- 

 teresting. 



LITERATURE. 



Publications received: — Dr. Thomas Taylor's reply to Science ^ 

 relating to the crystals of butter, animal fats and oleomargarine. 

 With colored plate. From the author, microscopist, U. S. Dept. 

 of Agriculture. 



Biennial report of the president of the University of California, 

 1886. From the University. 



On Tetraodon setosus, a new species allied to T. meleagris, 

 Lacep. By Rosa Smith. Extract from Bull. No. 6, Calif Acad. 

 Sci. From the author. 



On the occurence of a new species of Rhinoptera (R. Encena- 

 dae) in Todos Santos Bay, Lower California. By Rosa Smith. 

 Extract from Proc. U. S. National Museum. From the author^ 



Revised list of rare American silver and copper coins. By 

 E. T. Gambs, coin and stamp dealer, 234 Montgomery vStreet, 

 San Francisco. From the author. 



Among the journals received, we would mention the second 

 monthly number of Science Series, a weekly magazine of natural 

 science, containing ' Parasites and their development ' ' The dia- 

 mond,' 'Alexander Von Humboldt' and 'Aquariums, how to 

 make and stock.' 



Le Naturaliste Cajiadien, of Cap Rouge (Province of Quebec, 

 Canada) and the Business Educator, of Owen Sound, Ont., are 

 welcome additions to our exchange list. 



The Botanical Gazette. 

 An illustrated monthly of 24 pages or more devoted to all 

 departments of Botany. Contains original investigations, descrip- 

 tive articles, editorial comments, and botanical news from all 

 parts of the world. It appeals both to the specialist and to the 

 intelligent lover of plants. Price, $2.00 a year. 



Dr. }. M. Coulter, Crawfordsville, Ind. 

 Prof. C. R. Barnes, LaFayette, Ind. 

 Prof. J. C. Arthur, Geneva, N. Y. 



Editors & Publishers. 



The Bulletin of the Torrey Botanical Club. 

 A Monthly Journal of Botany, founded in 1870 by Wm. H. 

 Leggett. Devoted to the publication or original investigations in 

 the field and laboratory by members of the Club and other 

 leading botanists. Subscription, $r.oo a year in advance, pay- 

 able to the editor of the Bulletin of the Torrey Botanical Club, 

 Columbia College, New York. 



