/c 



SMITHSONIAN 

 MISCELLANEOUS COLLECTIONS 



VOL. 73 



EVERY MAN IS A VALUABLE MEMBER OF SOCIETY WHO, BY HIS OBSEKV ATIONS, RESEARCHES, 

 AND EXPERIMENTS, PROCURES KNOWLEDGE FOR MEN " SMITHSON 



(Publication 3648) 



CITY OF WASHINGTON 



PUBLISHED BY THE SMITHSONIAN INSTITUTION 



1941 



