SECONDARY STANDARDS. 
919 
D. C. F. E. Scale. 
T+D + R + Y, G + X 22-82 G+X, T+D + R + Y 
23-50 
23-74 
25-00 
13-45 13-45 23-41 
749-3 13-8 21-66 
24-37 
22-85 
25-50 
26-22 
239-07 
20(G + X) 20(T + D + Y) + 20 R + 5-07 parts. 
40G£i40(T+D) + 30R + 29-45 parts, M=13-31, F=749-2, E=13-72. 
G^T + D + 0-01054 grain in air (#= 13-34, ^>=747-99)- 
G=I— 0-04413 grain. 
Gil!: W + 0-00591 grain in air (log A = 7"07832— 10). 
Means G = I — 0-04427 grain. 
GiiW + 0-00577 grain in air (log A=7-07832— 10). 
Scale. 
23-71 
23- 90 
25-10 
24- 09 
23-62 
21-80 
21- 55 
23- 91 
22- 32 
24- 00 
234-00 
G = lb. No. 18. 
D. 
C. 
F. 
E. 
11-2 
11-2 
752-75 
12 
11-37 
11-37 
752-8 
11-9 
11-5 
11-5 
752-8 
11-95 
11-55 
11 >55 
752-83 
12 
100 parts = 0-41249 grain. 
* 
I + S + Y, G + Q+X 16-34 
16-25 
16-59 
16-35 
15-57 
14-77 
15-06 
14-47 
14-66 
14-47 
154-53 
Scale. 
G + Q + X, I + S + Y 17-80 
18-25 
18-02 
17-54 
17-82 
15-14 
15-84 
16-00 
14-90 
15-82 
167-13 
20(G + Q + X)ii20(I + Y) + 20s + 12-6 parts. 
D. 
C. 
F. 
E. 
11-65 
11-65 
753-6 
12-1 
11-75 
11-75 
753-7 
12-2 
11-9 
12 
753-7 
12-5 
12 
12 
753-7 
12-5 
I + S + X, G + Q+Y 20-34 
21-20 
I + 2S + X, G + Q + Y 17-55 
17-74 
17-07 
16-86 
15-69 
14-52 
15-90 
16-41 
SCtll6 
G + Q + Y, I + S + X 18-12 
16-65 
G + Q + Y, I + 2S + X 18-92 
19-89 
18-21 
19-29 
17-97 
17-40 
17-84 
17-62 
173-28 
181-91 
20(G + Q+ Y)£h20(I + X) + 36S — 8-63 parts. 
40(G + Q):Ci:40I + 56S + 3-97 parts, M=ll-6l, F=753-23, E=12-13. 
G+Q:!iI + 0-0l631 grain in air (<=11-63, 6=752-2). 
G=I — 0-00129 grain. 
G:AW + 0-01862 grain in air (log A=7"07832— 10). 
