500 
THE EARL OF BERKELEY AND MR. E. CL J. HARTLEY ON THE 
Remarks .—The experiment of August 23 is rejected for the final result. It was 
carried out solely with the beam apparatus, and, as already stated, the degree of 
accuracy obtainable with that apparatus is not sufficiently good for the purpose. 
The total quantity of sugar found in the experiment of November 7 is quite 
anomalous. We can offer no satisfactory explanation of this. 
Table YII. 
I. 
II 
III. 
IV. 
V. 
VI. 
VII. 
VIII. 
IX. 
X. 
Date. 
Name 
of 
tube. 
Apparent 
turning- 
point 
pressure 
in atmo¬ 
spheres. 
Rate of 
movement 
of water- 
level due 
to guard¬ 
ring leak. 
Turning- 
point 
pressure 
in atmo¬ 
spheres. 
Time. 
Solution 
leak. 
Rate of 
movement 
of water- 
level due 
to solution 
leak. 
The 
increment 
of pressure 
used in 
the experi¬ 
ment. 
Rate of 
movement 
of water- 
level 
caused by 
increment 
of 
pressure. 
h. m. 
atmospheres 
100 Grammes Dextrose. 
May 
16 
X 
13-24 
0-5 | 
*13-21 | 
3 0 ) 
none 
— 
0-34 
3-9 
200 Grammes Dextrose. 
March 10 
X 
29-25 
0-7 
*29-18 
2 15 
0-0002 
— 
0-34 
3-2 
55 
19 
X 
29-20 
0-6 
29-14 
2 45 
0-0007 
1-0 
0-34 
3-1 
320 Grammes Dextrose. 
Feb. 
26 
N 
50-94 
0-8 
50-81 
3 5 
0-0034 
2-8 
0-34 
1-8 
* March 
6 
X 
53-51 
1 • 5 
*53-33 
2 40 
o-oooi 
0-34 
2-8 
„ 
16 
N 
— 
0-5 
52 • 40 
2 20 
o-oon 
1-2 
0-34 
— 
55 
24 
X 
53-09 
0 ■ 5 
*53-04 
2 45 
0-0002 
: - 
0-34 
3-2 
450 Grammes Dextrose. 
Jan. 
19 
G 
_ 
0-4 
86 - 36 
2 45 
0-0054 
3-5 
0-34 
—■ 
Feb. 
8 
X 
87 • 48 
0-9 
*87-34 
3 25 
o-oooi 
— 
0-34 
2 * 2 
55 
12 
X 
87-84 
1-1 
*87-70 
3 10 
none 
— 
0-34 
2-4 
550 Grammes Dextrose. 
Feb. 
28 
X 
121-09 
2-8 
120 66 
3 10 
0-0021 
0-9 
0-34 
2-2 
Mar. 
8 
N 
121-08 
0-2 
*121-02 
2 50 
0-0002 
—- 
0-34 
1-2 
May 
5 
X 
121-46 
0-9 
*121-35 
2 10 
j.v.t. 
•—■ 
0-34 
2-6 
55 
12 
X 
121-26 
0-7 
*121-17 
2 10 
0-0002 
0-34 
2-5 
Remarks .—Part of the solution of May 5 was kept for a week and its equilibrium 
pressure redetermined on May 12. The small difference between the two results 
shows that no change had taken place in the interval. 
