SMITHSONIAN 

 MISCELLANEOUS COLLECTIONS 



VOL. 69 



EVERY MAN 18 A VALUABLE MEMBER OF SOCIETY WHO, BY HIS OBSERVATIONS, RESEARCHES, 

 AND EXPERIMENTS, PROCURES KNOWLEDGE FOR MEN "— SMITHSON 



(Publication 2654) 



CITY OF WASHINGTON 



PUBLISHED BY THE SMITHSONIAN INSTITUTION 



1921 



