82 REPORT OF THE SECRETARY. 



4. Packages must be enveloped in stout paper, securely closed, and tied with strong 

 twine. 



5. No package to a single address is allowed to exceed one-half of one cubic foot 

 in bulk. 



6. Packages must not contain letters, or written matter. 



7. Packages must be delivered to the Smithsonian Institution or its foreign agents 

 free of expense. 



8. Packages must contain a blank acknowledgment, to be signed and returned by 

 the party addressed. 



9. If returns are desired, the fact should be explicitly stated on the package. 



10. Packages received through the agency of the Smithsonian Institution must be 

 acknowledged without delay by mail. 



11. The Institution assumes no responsibility beyond that of the delivery of the 

 packages. 



S. P. Langlby 

 Secretary Smithsonian Institviion. 

 Smithsonian Institution, 



Washington. 



Very respecifullv, 



W. C. WlNLOCK, 



Curator of Exchange*. 



