44 Immunization. 



and salvarsan (intravenous injection of 4.0 gr. twice). 

 They brought about no better effects. Atoxyl, ferrum 

 kakodylate, sodium kakodylate, potassium arsenate were 

 tried in vain. 



e) So also were veratrine, thymol, wood tar, anti- 

 monium sulphate, lecithin, cholesterine, nuclein acid, 

 antifebrine, phenacetine, glyceline extract of the bone- 

 marrow and sodium bicarbonate. These were given either 

 subcutaneously or pe7~ os. 



Care of the patient and allopathy. 



1. Excercise, labor and exposure, e.g., to extreme 

 heat and cold, winds, snow and rain are apt to bring 

 about exacerbation. The guard against these untoward 

 conditions results in the abatement of febrile attacks 

 and improves the course of the disease. 



2. Cardiaca, tonics, and digestives are effective to 

 abate the symptoms. 



3. Nutritious and easily digestible food improves 

 the condition of the patient and consequently tend to 

 increase the resistance of the constitution. 



X. IMMUNIZATION. 



It has been observed that the animal that survived 

 the disease no longer contracts it even if a large quantity 

 of the virulent blood is inoculated. Thus a certain degree 

 of immunity seems unquestionably to be acquired, but 

 whether or no the serum of these immunized horses 

 possesses any therapeutic or preventive properties must 

 be decided by a systematic study. Accordingly, seven 

 recovered horses were selected, in which increasing in- 

 oculations were made with the following results :— 



