Note in top right corner in different handwriting "[ . . . ] from Geneva Jan 29 1959]
January 12, 1959
Believe it or not I've begun writing on that damned history again after two or three years in the doldrums. I have reached
the brusque closing down of the IHD by CIB and the ice became so thin that I couldn't skate on some large areas at all.
Now I need your help again on 2 points.
1. Some of DDT's insecticide properties were discovered by Geigy but when the US got hold of some, it was turned over
for investigation to the Bureau of Plant Quarantine and Entomology at Orlando, Fla. Did Orlando concentrate on developing
a louse killer, or did they work out its toxicity for all household insects? If so, it had been used experimentally to kill
anophelines when the Army asked you to use DDT to control malaria around Rome in 1945. But was that work the first practical
attempt to control malaria on a large scale with DDT?
2. Is vaccination by scarification with [ . . . ] used only for mass vaccination of primitive peoples, and if so, why?
[END PAGE ONE]
[BEGIN PAGE TWO]
I hardly know where to address you now -- I suppose you are living in Chevy Chase. Let me know your plans and your fixed address.
I want to send you the chapter (or chapters) on y.f. when I get a draft ready sometime this year.