40 



Mr. S. U. Pickering on the Heat of 



Table I. (continued). 



Dissolved substance. 



w. 



Solvent for one mole- 

 cule of dissolved 

 Substance. 



(f-tfC. 



W. 2 



D M 

 ». 



t°C. 





2-884 

 2-818 

 2-684 



4 ; 435 

 4-443 

 4-450 



88 C 6 H 6 . 



90C 6 H 6 + C 2 H 6 0. 

 95 6 H 6 4-20 2 H 6 0. 



245 C 6 H 6 . 

 oo 6 H 6 . 



92 C 6 H 6 . 



92 C G H 4 + C 4 H 10 O. 



92 C G H 6 +2C 4 H 10 O. 

 245 G H 6 . 

 oo C 6 H 6 . 



91 C 6 H 6 . 



91 C G H G + 3 H 6 0. 



91 C 6 H 6 +2C 3 H 6 0. 

 245 C 6 H 6 . 



oo C 6 H 6 . 



132 C 6 H 6 . 



133 C 6 H 6 + C,H 5 N. 

 132 C 6 H 6 +2C 5 H 5 N. 

 245 C G H G . 



oo C 6 H G . 

 90 C G H 6 . 



89 C G H G -f CS 2 . 

 89 C 6 H G -f 2CS 2 . 



245 C G H 6 . 

 oo C G H 6 . 



92 C G H G . 



89 C G H G + C 2 H 4 2 - 

 85 C 6 H G +2C 2 H 4 2 . 

 245 C 6 H 6 . 

 oo 6 H 6 . 



-•9539 

 -•7414 

 -•5345 



-•0170 

 -•0151 

 -•0178 



-•0756 

 —0688 

 -•0637 



-•0148 

 -•0122 

 -0131 



-•"isib 



-•1319 

 -•1271 



—ioOO 

 -•0899 

 -•0805 



199-42 



-3026 



18-6 

 183 

 18-4 

 18-4 

 18-4 

 18-3 

 18-2 

 181 

 18-2 

 18-2 

 18-5 

 18-4 

 183 

 18-4 

 18-4 

 18-5 

 18-3 

 18-3 

 18-4 

 18-4 

 18-5 

 18-4 

 18-2 

 18-4 

 18-4 

 18-4 

 18-2 

 180 

 18-2 

 182 





201-10-2428 



" 



202-72 



20006 

 202-44 

 204-82 



199-50 

 201-32 

 203-14 



19917 



200-66 

 20215 



193-78 

 199 88 

 200-98 



199-43 



20113 

 202-93 



-1811 

 -3380 

 -3565 



- 57 



- 51 



- 60 



- 57 



- 57 



- 248 



- 229 



- 213 



- 282 



- 307 



- 70 



- 59 



- 63 



- 67 



- 69 



- 421 



- 424 



- 411 



- 428 



- 430 



- 470 



- 292 



- 251 



- 780 

 -H60 



?> 



Ether 1 







» 





3526 

 3-510 

 3514 



3 : 294 

 3-276 

 3293 



4-566 

 4-597 



3-834 

 3-711 



3-897 



S» 



55 



'5 _ 





' 



Carbon Disulphide * . . . 



55 J5 •■• 



55 »» 

 55 55 



Acetic Acid x 





55 



55 



1 Weight of benzene in the calorimeter, 6305 grams. 



2 Water-equivalent of the apparatus alone, 1026 grams. 



I may, no doubt, be expected to say a few words in an^ w 

 to a hostile criticism which Dr. James Walker published a 

 short time ago (Phil. Mag. xxxii. p. 355) on my work and 

 views on the subject of solutions. Although Dr. Walker 

 took upon himself the task of refuting the objections which 

 I raised against the dissociation theory (Phil. Mag. xxxii. 

 p. 20), he appears to me to have avoided the very difficulties 

 for which I most sought explanations, though, perhaps, the 

 absence of these explanations will probably be regretted by his 

 friends less than the absence of that courtesy which those who 

 are searching after truth might naturally expect from their 

 fellows, and the absence of which was in the present instance 

 all the more to be regretted as I had not associated Dr. 

 W r alker's name with any of the views which I had called in 

 question. 



