OBSERVATIONS FOR FINDING THE VOLUMES OF ^ AND (£. 
879 
glass tube the lower end of which reached to the bottom of the jar. The left-hand 
pan contained the counterpoise consisting of 14003 grains of bronze, for which 
log A=0*92260. The thermometers C, D were suspended in the water with their 
bulbs in a horizontal plane through the centre of gravity of (B. The counterpoise 
is supposed to be in equilibrium with the weights in or suspended from the right- 
hand pan, when the reading of the scale is 20. 
Let K, L denote PC No. 1, PC No. 2 respectively, and P, Q, R the bronze weights 
marked 100, 200, 400. (B and the loop of wire being suspended in water, and the 
weight in the first column placed in right-hand pan, the second column gives the 
corresponding reading of the scale. 
September 27, 1844. 
100 parts =0*500 grain. 
C. D. 
14*97 15*0 
14*97 15*0 
14*98 15*0 
14*97 15*0 
F. E. 
764*65 16*1 
764*65 16*1 
764*55 16*2 
764*62 16*13 
gr- 
Scale. 
0*0 
20*1 
0*0 
20*15 
0*0 
20*15 
0*0 
20*2 
0*0 
18*9 
0*0 
18*9 
0*0 
19*9 
0*0 
20*0 
0*0 
20*05 
0*0 
19*9 
0*0 
20*25 
0*0 
20*3 
0*0 
20*3 
0*0 
20*35 
0*0 
20*4 
0*0 
20*4 
0*0 
18*8 
0*0 
18*8 
0*0 
18*8 
0*0 
20*5 
0*0 
20*45 
0*0 
20*45 
0*0 
20*55 
0*0 
20*45 
0*0 
20*45 
0*0 
19*98 
Counterpoise in air (<=16*05, 6=763*08) balances (£ and wire loop in water (<=1 5*0) -|- 0*0001 grain in air. 
The wire loop alone being suspended in the water contained in the jar, to which a 
volume of water equal to that of (B had been added, and the weights K-l-L-l-(2)-l-(l) 
-fP-l-Q-l-R, together with the weight given in the first column, being placed in the 
right-hand pan, the second column gives the corresponding reading of the scale. 
gr. 
Scale. 
0*60 
45*00 
0*50 
22*80 
0*50 
22*35 
0*44 
11*85 
0*48 
15*00 
0*48 
15*80 
0*50 
20*80 
D. 
c. 
F. 
E. 
