GC-1 1041 
<MJ) 
ESTABLISHED 1802 
E. I. DU Pont de Nemours & Company 
INCORPORATED 
Wilmington 98, Delaware 
GRASSELLI CHEMICALS DEPARTMENT 
EXPERIMENTAL STATION 
January 9, 1956 
Dr. Waldo L. Schmitt 
Head Curator 
Department of Zoology 
Smithsonian Institution 
Washington 25, D. C. 
Dear Dr. Schmitt: 
The soil sanqjles which you shipped have been received. 
We have examined them and they appear to be in 
excellent condition. We certainly thank you for your 
care in handling and shipping these soils. 
As you have requested, we will autoclave samples 59, 
75 and 78 and return them to you. 
Your cooperation in supplying these soil samples is 
appreciated, and we hope that our examination of them 
indicates that they contain new and valuable materials. 
Very truly yours 
DEW:Q 
Dale E. Wolf, Manager 
Agricultural Chemicals Section 
BETTER THINGS FOR BETTER LIVING . . . THROUGH CHEMISTRY 
