civilizing influence. The Igorrotes work hard; their women 96S 

 along with them and enjoying equal rights. They are stocky 

 with long bodies and rather short, powerful legs, Mongoloid 

 features and absolutely reliable characters. Captain Gardiner's 

 wife got some of the soldiers to pose in costume and Marie and 

 Margaret caught some interesting studies. I stuck to the 

 scenery and the pine trees. 



I have been trying various stunts on the lepra bacillus and 

 recently obtained cultures that show proliferation. I would 

 like to get more "real" cultures, for I believe it would make 

 possible treatment of the disease by desensitization. It is sur- 

 prising how often the recurrent attacks of leprosy are mark- 

 edly urticarial and anaphylactic in type. Dr Schobel here has 

 gotten suggestive "takes" in monkeys by super infection, i e 

 reinoculation, after sensitization. His work on syphilis and 

 yaws in monkeys fits in nicely with what I have been preach- 

 ing about the role of sensitization in infection and desensitiza- 

 tion with recovery — monkeys are sensitive to reinoculation 

 with yaws until they have run the course of the disease, when 

 they become desensitized; and the whole course from sensi- 

 tivity to desensitization can be shortened by using repeated 

 doses of a killed virus. The question of the complete cure of 

 syphilis and its prevention by inoculation is wound up in the 

 preparation of a suitable antigen which will give the desired 

 desensitization. I am to talk on this subject to the Army med 

 officers club next Wednesday. I find Major Simmons, who 

 heads the Army medical research board, good company; and 

 Dr Schobel drops in quite frequently. There are few here who 

 know what he is talking about. 



In the new year he wrote again (February 7, 1930) : 



Last week I sent you a set of poker chips by registered mail. 

 I had intended to send you the receipt in this letter but cannot 

 find it. I hope they reach you. 



I have just written a preliminary note for Dr Hektoen on 

 the cultivation of an acid-fast from leprosy. I have gotten it 

 proliferating in one medium only, have grown it from three 

 cases and have two subcultures. It grows very slowly; and so 

 far only within the semisolid medium at partial oxygen tension 

 and with increased carbon dioxide. Like the lepra bacillus in 



