The Dibner Library 



of the History of 

 Science and Technology 



SMITHSONIAN INSTITUTION LIBRARIES 



-R 



H ERALD QF SCIENCE NQ.« T 



l;N GROUEiUEXHlB.-19»il 



BURNDY 

 LIBRARY 



Charurtd in 1941 



GIFT OF 



Bern Dibner 



