54 



THE BUREAU OF SCIENCE 



Cases. 



Tunics of testis 3 



Hydrocele 3 



Urethra 2 



Polyp 2 



Uterus 34 



Adenomyoma 2 



Carcinoma fundus 1 



Epithelioma cervix 1 



Fibromyoma largest, 15.5 

 kilograms 15 



Cases. 



Hydatid mole 



Hydrometrium from ade- 

 noma cervix 



Lipomyoma 



Metritis 



Malignant adenoma cer- 

 vix 



1 

 1 

 4 



Uterus — Continued. 



Myoma 5 



Tuberculosis 2 



(See Cervix uteri, Curettings, 

 uterine.) 



Vas deferens 



Tuberculosis 1 



Vulva 



Cyst— 



Dermoid 1 



Bartholini gland 1 



Epithelioma 

 Papilloma ... 



1 

 1 



Immunity. — The studj^ of the duration of passive immunity 

 against tetanus toxin has been continued, and the following 

 conclusions reached : 



1. The subcutaneous injection of 1,500 units of antitetanic serum from 



horse into horse confers passive immunity of between six and eight 

 weeks' duration. 



2. Guinea pigs subjected to repeated inoculations with antitetanic serum 



from horse do not acquire the power to eliminate it more rapidly; 

 they acquire a tolerance as is shown by the longer period of immunity. 



3. After repeated injections of normal horse serum into guinea pigs, pas- 



sive immunity, follo-\ving the injections of antitetanic serum from 

 horse, is of longer duration than it is in untreated guinea pigs. 



A comparison of the different modifications of the Wassermann 

 test for syphilis has been made for the purpose of determining 

 their relative value and reliability. In confirmation of the 

 results of other investigators, methods in which unheated serum 

 is used give a much higher percentage of positive results than 

 those in which heated serum is used. 



Serums and vaccines. — The preparation of variola vaccine 

 (vaccine virus) was continued throughout the year. Cholera 

 prophylactic, plague prophylactic, gonococcus vaccine, staphylo- 

 coccus vaccine, typhoid vaccine, and streptococcus vaccine were 

 prepared in moderate quantities. Anthrax vaccine, tuberculin 

 (both human and bovine), and mallein were continually kept 

 on hand. 



Antidiphtheritic, antitetanic, anticholera, antityphoid, anti- 

 plague, antidysenteric, and antistreptococcic sera were made in 

 quantities sufficient to supply the demand. 



