JiS' 



SMITHSONIAN 



IW. 



VOL. XXXIV. 



' EVERY MAN IS A VALtlABLE MEMBER OF SOCIETY WHO BY HIS OBSERVATIONS, RESEARCHES 

 AND EXPERIMENTS PROCURES KNOWLEDGE FOR MEN." — SMITHSON. 



WASHINGTON CITY: 



PUBLISHED BY THE SMITHSONIAN INSTITUTION. 



1893. 



