OBSERVATIONS FOR FINDING THE DENSITY OF THE QUARTZ WEIGHT. 899 
Q and wire in water. In right-hand pan. 
G. 
L. 
gr* 
Scale. 
121*05 
67*80 
2*38 
22*9 
2*34 
9*0 
2*38 
25*6 
2*34 
9*7 
2*38 
26*7 
121*25 
68*05 
2*34 
13*9 
2*38 
26*9 
2*34 
15*5 
2*38 
26*8 
2*34 
17-3 
2*38 
26*1 
121*40 
68*40 
2*34 
18*3 
121*23 
68*08 
2*360 
19*9 
Counterpoise balances Q and wire in water (G=121*23, L=68*08)-l- 2*3574 grains in air. 
Q and wire in water (<=17*71):i^A-j-B + D-l-G-l-K-HM-l-S-f (16)— 0*3062 gr. in air(#=18*59, 5=763*33). 
July 30. Q and wire in water. In right-hand pan. 
G. 
L. 
gr- 
Scale. 
120*10 
66*25 
2*48 
27*5 
2*44 
20*1 
2*40 
6*9 
2*40 
5*0 
2*44 
24*3 
2*40 
8*0 
120*25 
66*50 
2*43 
21*9 
2*43 
20*8 
2*43 
21*2 
120*40 
66*70 
2*42 
19*5 
120*25 
66*48 
2*427 
17*52 
Counterpoise balances Q and wire in water (G= 120*25, L=66*48) + 2*4312 grains in air. 
In right-hand pan. 
gr. 
Scale. 
A -f B -b D -f G -b K -b M -f- S + (16) -b 2*08 
18*25 
+ 2*08 
18*45 
18*6, F= 764*2, E=22*3. 
+ 2*08 
18*97 
2*08 
18*56 
C.poise bal. A-f-B-|-D-|-G-l-K-f-M-(-S-i-(l6)-l-2*0813 grs. in air (D=18*6, C=18*6, F=764*2, E=22*3). 
Q and wire in water. In right-hand pan. 
G. 
L 
gr- 
Scale. 
120*6 
67*2 
2*40 
22*5 
2*37 
12*5 
2*40 
23*1 
2*38 
18*1 
120*85 
67*5 
2*38 
18*2 
2*38 
18*9 
2*38 
21*0 
121*0 
67-8 
2*38 
21*7 
2*36 
16*7 
120*82 
67*5 
2*3811 
19*19 
Counterpoise balances Q and 
wire in water (G= 
120*82, L= 
67’5) + 2*3806 grains 
Qand wire in water(<=17*65)^ A -l-B-l-D-t-G-fK-fM-i-S-|-(l6)— 0*3246 grain in air (<=18*64, 5=761*90). 
6 B 
MDCCCLVI. 
