Wheeler, Dr. Willis W. 
Re biotic assay Filed: Belgian Congo 
November 29 ? 19 %> 
Dr. Willis H. Wieeler 
Agricultural Research Service 
IT. S. Department of Agriculture 
22k 12th Street , S. V?, 
Washington 2$, J>, C. 
Pear pr. Wheeler; 
T not you haven't forgotten me and the Congo soli, samples which 
you have held for ns all these months. The Nepera Chemical Company 
to whom J first offered then and, indeed, for shorn it was suggested 
X collect them, hm found it impractical to undertake their examina- 
tion. But there was considerable delay before I received their 
declination. 
Recently the sponsor of our expedition approached the Pa ?enta , 
with which he has some business relations, and I have just heard that 
their Mr. A. ft* D.lcrnson, ' Development Department, L. I. So Pont 
Tm Semours h Company, Wilmington, Delaware, will screen the samples 
provided ' , no strings’* &r« attached* I fine this Is the rule with ail 
such samples , Ifspera, Merck (via Mepera) and now Du Pont. 3© a* it 
may, the first thing is to have the samples examined for stoat they 
may contain before they become valueless from all points of view. 
Therefore , will you not kindly write 5®?* Bjornson to ascertain 
if they can comply with your regulations , and if ao, let me know when 
I might ship the® to him. . A carbon of my letter to him is enclosed, 
together with a list of the samples. A copy of this list accompanied 
®y letter to Hr. B.jcrnson . 
Thank you for your kindness, patience, and assistance in this 
matter , 
Sincerely, 
Vsaldo L. Sclaaitt 
Head Curator 
Department of Zoology 
Rica. 
