STANDARD FORM NO. 64 
Office Memorandum • 
/ 
UNITED STATES GOVERNMENT 
Dr, B, G. Schubert 
DATE: 
March 6, 1953 
FROM 
from : Dp. e. O Horning 
Dy. E, O Horning 
subject: Summary of Plant Materials 
The enclosed summary covers our first 100 plant samples. It 
is still incomplete in the sense that we have not completed al 1 of 
the testing, but I thought we should have an interim or progress 
report. 
When the pharmacological reports are complete, we will add a 
second section to summarize the types of activity found in these 
materials. 
Thanks for the list of poisonous plants. I hope to send you 
a note about them next week. 
