DEPARTMENT OF THE ARMY 
POSTAGE AND FEES PAID 
r ' E s SJS ent seato A med. beseabch lab, 
SAM FRANCISCO, 96346 
OFFICIAL BUSINESS 
Smithsonian Institution 
U«S« National Musefim 
Attn.s- Dr. J.P.E. Morrison 
W a s h r n cf t. o n ^ o«o» 
20560 
PREVIOUS EDITIONS OF THIS LABEL ARE OBSOLETE. 
☆ GPO : 1962 0-668963 
DA LABEL 
1 APR 59 
