in Terms of the Mechanical Equivalent of Heat. 31 



Horizontal magnetic force before experiment - 1 960 



Horizontal magnetic force after experiment. -1963 



Mean -19615 



Temperature of jacket 21 0, 5 to 21° # 6 



Temperature of air near stem 22° -8 to 23° - 4 



Temperature of 30,000 ohm coil 21°-5 to 22°-3 



Thermometer in calorimeter Baudin 7320 



Time. 



Reading 

 7820. 



Stem. 



2A. 



Time. 



m. s. 

 25 14 

 31 9 

 35 58 

 42 54 



Reading 

 7320. 



Stem. 



2A. 



20°. 



20'. 



J. 



m. S. 

 8 40. 

 13 16 

 20 38 

 25 14 



19°'45 

 21°-15 

 23°-80 

 25°-40 



— ■010 



— •007 

 •000 



+ .009 





 — •018 

 + •005 



•056 



25 c -40 

 27°-40 

 28°-98 

 31°-15 



+ •009 



•021 

 •029 

 •039 



+ •056 

 •167 

 •299 

 •565 



51° 8'-4 

 50° 57'-5 

 50° 48'-5 

 50° 40'-4 



7° 35'-6 

 7° 28'-5 

 7° 24'-4 

 7° 21'-4 



41810000 

 41640000 

 41640000 

 41840000 



Time. 



Galvanometer. 



237° 14' 

 259° 12' 

 229° 34' 

 207° 42' 



Time. 



Galvanometer. 



Time. 



Galvanometer. 



Time. 



Galvanometer. 



m. S. 

 7 50 

 7 



10 20 



11 30 



m. s. 

 15 40 

 17 5 



22 



23 25 



237° 11' 



258° 56' 

 229° 40' 

 207° 58' 



m. s. 



28 5 



29 15 

 32 45 

 34 



237° 5' 

 258° 46' 

 229° 42' 

 208° 0' 



m. s. 

 39 

 41 



44 15 



45 25 



237° 2' 



258° 40' 

 229° 44' 

 208° 4' 



Following is the general table of results 



Date. 



Nov. 24. 



Dec. 9. 



Dec. 14. 



Dec. 20. 



Dec. 22. 

 6165 



Jan. 26. 



Feb. 16. 



Thermometer . . 



7320 



7320 



6165 



6165 



6165 



6165 



Temp, of water 



24°-3 



25°-4 



27°-0 



26°-6 



26°-3 



27°-2 



26°-2 



Temp, of R' ... 



23°-0 



22°-l 



23°'8 



21°-7 



23°-4 



19°-1 



20°-6 





4240 



4181 



4180 



4207 



4198 



4194 



4207 





4248 



4164 



4222 



4195 



4216 



4192 



4219 





4229 



4164 



4217 



4206 



4232 



4205 



4174 



J 



4274 



4184 





4204 



4218 



4193 





10000 



4216 

 4217 

 4204 







4182 











4225 

 4225 

 4224 















Means 



4230 



4173 



4206 



4199 



4216 



4196 



4200 



The greater number of results on Nov. 24 is due to the 

 fact that single thermometer readings were taken instead of 

 groups. The two experiments with 7320 show the greatest 

 variation from the mean, but the mean of these two agrees 



