'f TtiKnlafinn- r»*i I n _ f'.i 11 ,Q! ren 1 .ft arr i Art tt In firm c 
sending to be mailed to the Smithsonian Institution at or before 
the time of transmission. 
« 
4. Packages to be legibly addressed and to be endorsed with the 
name of the sender and their contents. 
5. Packages to be enveloped in stout paper, and securely pasted 
or tied with strong twine—never sealed with wax* 
6. No package to a single address to exceed one-half of one cubic 
foot in bulk. 
7. To have no enclosures of letters. 
8. To be delivered to the Smithsonian Institution or its agents 
free of expense. 
9. To contain a blank acknowledgment, to be signed and re¬ 
turned by the party addressed. 
10. Should returns be desired, the fact is to be explicitly stated 
on or in the package. 
Unless these conditions are complied with, the parcels cannot 
be forwarded by the Institution. 
Spencer F. Baird, 
Secretary Smithsonian Institution . 
Smithsonian Institution, 
AVashington, January 1, 1879. 
