468 
MR. E. H. GRIFFITHS ON THE VALUE OF 
Table XXXIII.—Series 11. J 34. September 18, 1892. 
Weight of water [in vacuo) = 259'500 grms. 
Clark cells, n = 6. Nos. (37, 38, 39), (40, 41, 42), (43, 44, 45), (46, 47, 48), 
(49, 50, 51), (52, 53, 54). Temperature 15° C. 
External temperature 241‘2 A = 300 E = 19°‘260 C. Pressure = '48 millim. 
Calorimeter cooled to 10°'0I C. Connections reversed at C 
Reading 
E,„. 
Time. 
Time over 
interval. 
Revolu¬ 
tions. 
Time of 
revolutions. 
Rate. 
seconds. 
ihousauds. 
seconds. 
86 
65-9 
0 
18-5 
87 
69-6 
88 
73-7 
89 
77-3 
2 
85-5 
126 
217-4 
151-5 
5 
184 
127 
221-4 
151-8 
128 
225-2 
151-5 
129 
228-9 
151-6 
7 
250 
1 
]\Iean 
151-6 
30-23 
176 
411-5 
194 1 
11 
382-5 
i 
177 
415-4 
194 
178 
419-3 
194-1 
179 
423-2 
194-3 
13 
448-5 
fMean 
■ 
• • 
194-13 
30-25 ; 
I 216 
568 
1565 
16 
547-5 
! 217 
572 
156-6 
218 
576 
156-7 
219 
580 
156-8 
18 
613-5 
, 
Mean 
156-65 
30-30 
256 
727-5 
159-5 
21 
712-4 
i 
257 
731-5 
159-5 
1 
258 
735-5 
1595 
259 
1 
739-6 
159-6 
22 
/ 45*4 
iMean 
159-53 
■■ 
30-23 
