130 
MESSRS. W. R. BOUSFIELD AND C. ELSPETH BOUSFIELD 
Table III. 
j Reference No. 
of experiment. 
Capacity experiments. 
0° C. to 13° C. 
13° C. to 26° C. 
26° C. to 39° C. 
Weight of water 
(W) 
in calorimeter. 
First Set. 
488 
13,437 
13,380 
13,400 
3000-4 
490 
13,443 
13,383 
13,410 
2999-8 
492 
13,439 
13,397 
13,425 
3000-2 
494 
13,415 
13,398 
13,411 
3000-4 
496 
13,408 
13,382 
13,371 
3000-4 
498 
13,398 
13,371 
13,386 
2999-8 
Means . . . 
13,423 
13,385 
13,401 
3000-2 
Second Set. 
504 
13,424 
13,373 
13,386 
2998-5 
506 
13,414 
13,382 
13,409 
2999-7 
508 
13,417 
13,378 
13,418 
2999-4 
510 
13,416 
13,387 
13,395 
3000-0 
514 
13,409 
13,380 
13,397 
3000-2 
516 
13,438 
13,378 
13,405 
2999-5 
Means . . . 
13,420 
13,380 
13,402 
2999-6 
i Mean of all . . 
13,421 
13,382 
13,401 
2999-9 
WS J>. . . . 
12,582 
12,525 
12,525 
C h 
\J(l .... 
839 
857 
876 
12. The Specific Heat Measurements. —The solutions were made up with “con¬ 
ductivity water’ (k = 1 x 10~' 5 ) in the manner described in the next section. The 
KOI solutions were made from a pure salt re-crystallized and showing no trace of 
sodium in the flame test. The NaCl solutions were made from a pure salt 
precipitated by HC1 and fused. The observations were made and plotted in the 
manner before described, the results being calculated from the expression given in 
Section 9. The experimental results are given in Tables IV. and V. where P 
indicates the percentage of the solution and h the number of molecules of water per 
gramme molecule of solute. 
