■'^, 



SMITHSONIAN 

 MISCELLANEOUS COLLECTIONS 



VOL. 83 



'every IIAN IS A VALUABLE MEMBER OF SOCIETY WHO, BY HIS OBSERVATIONS, RESEARCHES, 

 AND EXPERIMENTS, PROCURES KNOWLEDGE FOR MEN" — SMITHSON 



(Publication 3075) 



CITY OF WASHINGTON 



PUBLISHED BY THE SMITHSONIAN INSTITUTION 



1930 



