394 HENET A. EOWLAND 



393-6 -l = 393-5 = 29-036, or 29-077 when corrected for stem. 

 243-7 -1 = 243 -6 = 17 -349; no correction for stem. 

 213-0 + -2 = 213-2 = 17 -374; no correction for stem. 



Mean, 17 -361. 



Mean specific heat between and 17 1-0024 



Mean specific heat between 17 and 29 ~ 



It is to he observed that thermometer No. 6166 in all cases gave 

 temperatures about 0-02 or 0-03 below No. 6163. This difference 

 is undoubtedly in the determination of the zero points, as on June 15 

 the zero points were found to be 20-4 and 58-0. As one has gone up 

 and the other down, the mean of the temperatures needs no correction. 



June 15 



Calorimeter before 2068-2; temperature 364-6 by No. 6166. 

 Calorimeter after 2929-2; temperature 249-7 and 217-7. 



Air and jacket at about 22 C. 



264-6 = 26-766, or 26-782 when corrected for stem. 

 249-7 = H -822, or 17-812 when corrected for stem. 

 217-7+ -l = 217-8=17-884, or 17-874 when corrected for stem. 



Bejected on account of great difference in final temperatures by the 

 two thermometers, which was probably due to some error in reading. 



June 21 



Calorimeter before 2002-7; temperature 330-3 by No. 6163. 

 Calorimeter after 3075-2; temperature 221-9 and 256-6. 



Air and jacket, 21 C. 



330-3 + -1 = 330-4 = 30-321, or 30-359 when corrected for stem. 

 221-9+ -1=222-0 = 18-349, or 18-343 when corrected for stem. 

 256-6+ -0 = 256-6 = 18-358, or 18-352 when corrected for stem. 



Mean, 18 -347. 



Specific heat between and 18 __ 

 Specific heat between 18 and 30 ~~ 



June 21 



Calorimeter before 2073-8; temperature 347-8 by No. 6166. 

 Calorimeter after 2986-8: temperature 234-5 and 206-6. 



Air and jacket, about 21 C. 



