812 PROF. W. H. MILLER ON THE CONSTRUCTION OF THE NEW STANDARD POUND. 
Observations for finding the density ofT. 
T weighed in air. 
; 22, 1844. 
100 parts = 
0-19917 grain. 
Sp+0-02gr.+Y. 
T+X. 
Sp.+0-02 gr.+X. 
T+Y. 
14-20 
13-35 
20-20 
19-55 
15-85 
14-70 
21-40 
21-40 
16-25 
14-35 
22-00 
22-10 
16-10 
14-40 
23-00 
22-30 
15-50 
13-80 
23-50 
22-40 
15-30 
13-00 
23-10 
20-80 
14-10 
12-90 
21-85 
21-60 
14-55 
12-65 
22-35 
21-00 
13-90 
12-00 
21-95 
21-30 
14-10 
12-60 
22-10 
21-90 
13-70 
11-90 
22-70 
21-95 
163-55 
145-65 
244-15 
236-30 
ll(Sp-|-0-02gr.+ Y):ii: 
11(T-1-X)-|- 17-9 parts. ll(Sp + 0-02 gr.-|-X)£l 
T Sp-h 0-01767 grain. 
ll(T+Y) + 7' 
1844. 
100 parts = 
:0-1456 grain. 
T. 
RS+0-01 gr. 
22-10 
22-20 
23-10 
24-85 
26-00 
24-55 
29-45 
26-70 
29-20 
28-10 
28-90 
27-70 
30-10 
26-90 
28-60 
27-80 
29-70 
27-65 
30-20 
29-07 
277-35' 
265-52 
10Ti::10(RS + 0-01 gr,) + 11-83 parts. 
T£i:RS + 0-01172 grain. 
Foi-T, by Schumacher’s Tables, log- A= r32566. For Sp and RS, log A= 1-32608 
by the same Tables. The space v\] — t;Sp contains O'oS grain of air nearly. There- 
fore the weight of Sp is nearly 5759-47 grains, and that of T nearly 5759-49 grains. 
Hence t;T=27T63, z;Sp = 27T37, fRS=27T37. Therefore vT is larger than vSp or 
i;RS, by the volume of 0-26 grain of water, or 0-00031 grain of air of ordinary density. 
gr- 
Hence 
T 
= Sp +0-01798. 
But 
Sp 
= U —0-52956. 
Therefore 
T 
= U -0-51158. 
Also 
T 
= RS+0-01203. 
But 
RS 
= U —0-52441. 
Therefore 
T 
= U —0-51238. 
Giving the former value twice the weight of the latter, 
T=U — 0-51 185 grain = 5759-48815 grains. 
In the observations for finding the apparent weight of T in water, the same pro- 
