128 PROCEEDINGS OF THE AMERICAN ACADEMY 



June 25. 



Calor. before 2220.3 ; temperat. 325.6 by No. 6166 ; 309.9 by No. 6165. 

 " after 3031.4; " 233.4 " " 224.6 " " 



Air, 24°.2 C. ; jacket, 23°.5. 



325.6 + .0 = 325.6 = 23°.725, or 23°.726 when corrected for stem. 

 309.9 + .2 = 310.1 = 23°.739, or 23°.740 " 



233.4 + -0 = 233.4= 16°.558, or 16°.545 



224.6 + .2 = 224.8 = 16°.562, or 16°.549 " " 



Means, 23°.733 and 16°.547. 

 Specific heat between and 16° _ ««,« 

 Specific heat between 16° and 24° 



June 25. 



Calor. before 2278.6; temperat. 340.35 by No. 6166; 324.1 by No. 6165. 



" after 3130.2; " 242.5 " " 232.8 « " 



Air, 23°.5 C. ; jacket, 22°.5. 



340.35 + .0 = 340.35= 24°.877, or 24°.881 when corrected for stem. 



324.1 +.2=324.3 = 24°.899, or 24°.903 " « 



242.5 -\-.0 = 2U.5 = 17°.264, or 17°.253 " " 

 232.8 +.2 = 233.0 = 17°.261, or 17°.250 



Specific heat between and 17° _ n n97 

 Specific heat between 17° and 25° 



June 25. 



Calor. before 2316.35 ; temperat. 386.1 by No. 6166 ; 368.4 by No. 61 65. 



" after 2966.90; " 295.4 « " 281.7 " " 



Air, 23°.5 C. ; jacket, 22°.5. 



386.1 + .0 = 386.1 = 28°.45o, or 28°.465 when corrected for stem. 

 368.4 + .2 = 368.6 = 28°.472, or 28°.482 « " 



295.4 + .0 = 295.4 = 21°.374, or 21°.368 



281.7 + .2 = 281.9 = 21.°400, or 21°.394 " " 



Means, 28°.473 and 21°.381. 



Specific heat between and 21° _ 1 ftn .R 

 Specific heat between 21° and 28° 



Two experiments were made on June 23 with warm water in 

 vessel A, readings being taken of the temperature of the water, as it 



