SMITHSONIAN MISCELLANEOUS COLLECTIONS. 



288 



THE 



CONSTANTS OF NATURE. 



SPECIFIC GRAVITIES, BOILING POINTS, 

 AND MELTING POINTS. 



FIEST SUPPLEMENT TO PART I. 



COMPILED BY 



FRANK WIGGLESWORTH CLARKE, S. B. 



PROFESSOR OF CHEMISTRY AND PHYSICS IN THE UNIVERSITY OF CINCINNATI. 



WASHINGTON, D. C: 

 PUBLISHED BY THE SMITHSONIAN INSTITUTION. 



APRIL: 1S7 6. 



