February 14, 1947 
Dr. William Hall Holden, 
755 Park Avenue, 
Hew York 21, Mew York. 
Dear Bills 
Thanks a million for yours of February 11 
relative to the use of Aralen. I will use this 
myself and have repeated your instructions to 
Carriker who is collecting for us at the present 
time in northern Colombia along the Magdalena. 
X m still uncertain as to when I can get 
away, but I am hoping to make it th® first week in 
March. I will know more about it tomorrow as I 
have an appointment with a gentleman who supervises 
our hearings for appropriations, this hearing being 
the control on my departure., 
Sincerely yours. 
A. Wetmore, 
Secretary, 
hs 
