VIII 



MISCELLANEOUS SERA AND EXTRACTS 



ANTIRABIC SERUM— ANTILEPROSY SERUM— ANTITYPHOID 

 EXTRACT OF JEZ— LEUCOCYTIC EXTRACT— ANTIFER- 

 MENT — ANTICARCINOM ATOUS EXTRACTS — PYOCYA- 

 NASE— ANTITHYROID SERUM AND EXTRACTS— SPANG- 

 LER'S CROTALIN— PHYLACOGENS 



There are several extracts and sera that have been 

 introduced as methods of treatment in various diseases, 

 but which require httle more than brief mention, either 

 because they have not yet been given thorough trial, 

 or because results with them have not been sufficiently 

 striking as to establish them as routine measures. 



Antirabic Serum. — The success of active immu- 

 nization in the prevention of hydrophobia has led 

 several workers to attempt to obtain a sermn for pas- 

 sive immunization in this disease. Such immunity has 

 been experimentally produced by means of serum 

 from dogs that have been actively immunized by in- 

 jections of rabies virus. The practical value of the 

 serum, however, is not yet sufficiently established. 

 The recent announcement of the isolation and arti- 

 ficial culture of the rabies organism by Noguchi leads 

 to the hope of success along this line. 



Antileprosy Serum. — As yet, it has not been pos- 

 sible to cultivate the leprosy bacillus on artificial 

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