Proceedings of the American Academy of Arts and Sciences. 



Vol. 51. No. 2. — September, 1915. 



CONTRIBUTIONS FROM THE JEFFERSON PHYSICAL 

 LABORATORY, HARVARD UNIVERSITY. 



POLYMORPHIC TRANSFORMATIONS OF SOLIDS UNDER 



PRESSURE . 



By p. W, Bridgman. 



Investigations on Light and Heat made and published with aid from the 



RuMFORD Fund. 



