ON THE MECHANICAL EQUIVALENT OF HEAT 



449 



TABLE XXXIX. Continued. 



TABLE XL. FOUBTH SERIES. Preliminary." 

 March 24, 1878. Jacket 5-4 to 8 -2. Air about 6 C. 



47 The first part of the experiments was lost, as the pen of the chronograph did 

 not work. 

 29 



