17 
We injected a number of guinea pigs with 400 or 500 units of anti- 
toxin during various stages of paralysis. These pigs had all been 
given toxine-antitoxin mixtures for the purpose of testing the 
strength of various serums bought on the open market in accordance 
wdth the law of July 1, 1902.® 
It will be seen from Table 1 that the antitoxin apparently had no 
influence at all to save life or ameliorate the symptoms when given 
during the stage of paralysis. 
«An act to regulate the sale of viruses, serums, toxins, and analogous products in 
the District of Columbia, to regulate interstate traffic in said articles, and for other 
purposes. Approved July 1, 1902. 
2748— No. 38—07 3 
