SECONDARY STANDARDS. 
907 
G= lb. No. 2. 
D. C. F. E. 
12- 9 12-95 
748-5 13-4 
13- 1 13-13 
100 parts =0-27039 grain. 
Scale. 
T+D + X, G + R + Y 19-86 
22-37 
21-82 
19-64 
17-72 
18-00 
T+D + X, G + Y 13-06 
13-27 
13-96 
14-97 
15-60 
190^ 
G + R + Y, T + D + X 19-05 
18-31 
18-95 
17-31 
13-54 
13-36 
G + Y, T + D + X 19-32 
18-47 
19-71 
19-10 
18-87 
195-99 
22(G + Y) + 1 2 R :2: 22(T + D + X) - 5-72 parts. 
D. C. F. E. 
13-45 13-48 
748-9 13-65 
13-4 13-45 
Scale. 
T+D+Y, G + X 18-00 
20-61 
18-47 
18-55 
18-84 
19-70 
17-44 
17-22 
18-24 
18-17 
16-81 
202-05 
Scale. 
G+X, T + D + Y 23-42 
22-85 
21-16 
22-22 
22-49 
22-22 
20-54 
19-47 
22-22 
21-35 
22-67 
240-61 
22(G + X)£1:22(T + D + Y)— 38-56 parts. 
44G:ii:44(T + D)-12R-44-28 parts, M=13-23, F=748-7, E=13-52. 
G — T + D — 0-00587 grain in air (#=13-26, &=746-51). 
G = I — 0-03582 grain. 
GiiW — 0-01132 grain in air (log A=7*07832 — 10). 
G= lb. No. 3. 
D. C. F. E. 
12-55 12-55 
755-8 13-3 
12-85 12-85 
100 parts=0-27397 grain. 
Scale. 
T + D + R + Y, G + X 28-30 
28-00 
29-51 
27-62 
28-07 
T+D + 2R + Y, G + X 23-04 
24-89 
21-67 
22-80 
22-16 
256-06 
Scale. 
G + X, T+D + R + Y 23-15 
19-65 
21-54 
20-90 
18-70 
G + X, T + D + 2R + Y 2464 
24-05 
20-79 
20-29 
20-30 
214-01 
20(G + X) A: 20(T + D + Y) + 30R + 42-05 parts. 
6 c 
MDCCCLVI. 
