146 Society for Experimental Biology and Medicine. 



solution, which was neutral in reaction, yielded on acidification a 

 bulky flocculent precipitate of mucoid ; on rendering it alkaline, 

 however, crystalline strychnin was immediately deposited in rela- 

 tive abundance. 



Our observations suggest thus far that this preparation was a 

 definite strychnin-mucoid salt, although we have not yet excluded 

 the possibility that it was an adsorption product. Preliminary ex- 

 periments indicate that it required from about three to four times 

 as much of this product as of strychnin sulfate to produce tetanus 

 promptly in dogs and frogs. 



The purification of such products, and their chemical and phar- 

 macological study, is under way. 



