SECONDARY STANDARDS. 
D. 
C. 
F. 
15-25 
15-2 
15-5 
15-4 
15-6 
15-5 
768-S 
15-75 
15-7 
15-95 
15-85 
16-03 
15-98 
26(G + X) 
£i26(T 
52Gil52(T + D)- 
G^T + D 
-0-001 
Mean ...G 
= 1-0' 
D. 
C. 
F. 
13-05 
13-0 
13-3 
13-25 
761-1 
13-5 
13-5 
761-0 
13-7 
13-65 
13-75 
13-7 
D. 
C. 
F. 
12-85 
12-8 
13-0 
13-0 
759-7 
13-25 
13-2 
13-4 
13-35 
13-5 
13-45 
E. 
16 
T + D + Y, G + X 
Scale. 
25-15 
25- 72 
26- 32 
24- 44 
25- 21 
24-84 
24- 55 
25- 40 
24-79 
24-50 
24-76 
24-05 
24-35 
325-08 
G + X, T + D + Y 
E. 
14-1 
14-4 
G = lb. No. 33. 
100 parts = 0*3 1374 grain. 
Scale. 
T + D + Y, G + X 17-00 
15-95 
16-09 
16-70 
16-77 
16-45 
16-84 
20-40 
19- 79 
20- 80 
20-52 
19-39 
19-91 
16-95 
G + X, T + D + Y 
T + D + Y, G + R + X 
G + R + X, T+D + Y 
T + D + Y, G + X 
253-56 
28(G + X) + 12R£i:28(T + D + Y)-0-81 part. 
G + X, T + D + Y 
E. 
14 
T + D + X, G + Y 
T + D+’X,G + R + Y 
T + D + X, G + Y 
758-5 
14-4 
Scale. 
19-19 G + Y, T+D + X 
19-85 
23-47 G+R + Y, T + D + 5 
22-44 
22-20 
22-37 
21-57 
21-25 
18-01 
16- 72 
17- 77 
18- 57 
17-20 
17-16 
G+Y, T + D + X 
277-77 
MDCCCLVI. 
28(G + Y) + 1 2 R 28(T + D + Y) + 2-74 parts. 
56G + 24R:ii56(T + D) + l-93 pa'rt, M=:13-31, F=:760-07, E=14-22. 
G ^T + D — 0-00474 grain in air 13-34, 6 = 758-77)- 
G = I — 0-04144 grain. GiUW— 0-00063 grain in air (log A=7-07832— 10). 
6 F 
931 
Seale. 
27-26 
27-59 
27-80 
26-40 
26-85 
26-37 
25- 45 
26- 56 
26-46 
25-12 
25-26 
24-75 
24-47 
340-34 
Scale. 
20-30 
19- 35 
20- 39 
19-27 
19-97 
19- 89 
20- 50 
17-05 
16-65 
16-02 
16-27 
14- 15 
15- 54 
19-02 
254-37 
Scale. 
23- 41 
24- 49 
19- 09 
18-21 
18-79 
18-51 
18- 52 
16-90 
20- 46 
19- 65 
19- 62 
20- 75 
18-34 
18-29 
2^-03 
