OBSERVATIONS FOR FINDING THE DENSITY OF THE QUARTZ WEIGHT. 897 
2*24 
17*10 
2*24 
17*00 
71*05 
2*24 
18*00 
2*24 
17*30 
2*24 
17*90 
71*07 
2*240 
17*69 
Counterpoise balances Q and wire in water (<=18'15) + 2‘2437 grains in air. 
In right-hand pan. 
gr- 
Scale. 
A + B-|-D-pG-]-K-pM-hS-f(l6)-h2*10 
23*80 
-h2*08 
16*27 
D=18*45, C: 
= 18*5, F= 768*9, E=19*7. 
-42*09 
20*00 
-1-2*08 
15*15 
+ 2*09 
19*30 
2*088 
18*90 
C.poise bal. A-fB-|-D-fG-)-K-+-M-fS-p(l6)-l- 2*0883 grs. in air (D=18*45, C 
= 18*5, F: 
Q and wire in water. 
In right-hand pan. 
G. 
L. 
gr- 
Scale. 
122*9 
70*93 
2*24 
16*4 
2*28 
28*0 
2*24 
10*6 
2*24 
17*0 
2*24 
18*5 
2*24 
18*0 
2*24 
14*7 
122*87 
70*8 
2*24 
17*1 
2*28 
23*2 
2*28 
24*9 
2*24 
14*0 
2*28 
22*5 
2*28 
30*5 
2*24 
14*5 
122*9 
70*90 
2*24 
16*5 
122*89 
70*88 
2*2538 
19*09 
Counter]: 
)oise balances Q and wire in 
water (<=18*13) + 2*2530 
grains in a 
Q and wire in water (t— 
1 8*1 4) A -1- B -t- D -p G + K + M -I- S -f ( 1 6) - 0*1 603 gr. 
in air (t= 
July 29. 
Q and wire in water. 
In right-hand pan. 
G. 
L. 
gr- 
Scale. 
119*10 
64*60 
2*54 
17*0 
2*58 
28*9 
2*50 
10*5 
2*54 
22*6 
2*50 
13*1 
2*54 
29*5 
119*30 
64*90 
2*50 
12*5 
2*50 
9-9 
2*54 
28*8 
2*52 
23*1 
119*45 
65*13 
2*50 
20*0 
2*50 
20*8 
2*48 
13*5 
2*50 
19*2 
2*50 
23*5 
2*48 
18*8 
119*28 
64*88 
2*5137 
19*48 
Counterpoise balances Q and wire in water (G=119'28, L = 64-88)-(- 2*5123 grains in air. 
