52-12 



Proceedings of the American Academy of Arts and Sciences. 



Vol.52. No. 12. — Jux\e, 1917. 



THE JOULE-THOMF^OX EFFECT IN SUPERHEATED 

 STEAM: I. EXPERIMENTAL STUDY OF HEAT- 

 LEAKAGE. 



By H. M. Trueblood. 



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



RuMFORD Fund. 



