Weir Mitchell e Reichert —Researches of the venom of the ratlle snake 
Smithsonian Institution 1860. 
Wucherer — Sobre a mordedura das cobras venenosas e seu tratamento 
—Gazeta Medica da Bahia 1867 ns. 17, 20 e 21. 
Wolfenden —Vhe venom of the indian cobra (Naja tripudians) Univer. 
College-London. Jour of physiol. V XII pag.327—A mote 
upon the venom of the indian uper (Dab. Russ) Journ. of 
physiol. Ba VII pag. 357. 
Yorrow-Check list of North American Reptila and Batrachia—Bulle- 
tin n. 24 of U.S. National Museum 1882. 
= o7% 
