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On the construction of the new imperial standard pounds : on the comparison of the new standards with the kilogramme des archives; and on the construction of secondary standard pounds, a ten-pounds weight, a kilogramme, and a series of troy ounce weights / by W.H. Miller
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832 PROF. W. H. MILLER ON THE CONSTRUCTION OF THE NEW STANDARD POUND.

PC No. 1 ^T+B-j-0'6714 gr. T=5759'4881 gr., B=1239"8880 gr. ThereforePC No. I 7000-0475 grains.

For PC No. 1, log A= 1*32566. For T+B+06714, log A= 1 32560.

Hence wPC No. 1=33070, v(T+B+ 0-6714 gr.)=33072. wPC No. 1 is less thanv (T+B+0'6714) jjy th e volume of 0'02 grain of water, or of 0-00002 grain of air ofordinary density. Hence

PC No. 1=7000*0475 grains.

July 18, 1844.

100 parts =0-26 grain.

PC No. 1 and hook in water. In right-hand pan.

H.

P.

16-95

17-65

16-9

17-6

16-9

17-65

16-9

17-6

16-8

17-55

16-8

17-5

16-8

17-45

16-8

17-5

16-75

17-45

16-75

17-45

16-835

17-53

gr.

Scale.

0-12

19-4

0-12

19-9

0-12

20-1

0-12

20-8

0-12

21-2

0-12

21-5

0-12

19-1

0-12

19-0

0-12

19-4

0-12

20-0

0-120

20-04

Hook in water. In right-hand pan.

gr. Scale.

T + F + K + (l6) + (8) + (4) + (2) + 0-68 27-4

0-66 20-4

0-66 20-4

0-66 19-3

0-66 i 6-0

Air. 0-66 14-0

<=17-0, 6=754-76. 0-68 22-0

0-68 22-5

0-66 19-2

0-66 19-2

0-66 16-5

0-68 23-0

0-68 26-2

0-6677 20-47

PC No. 1 in water («=l6-95)£iT+F-i-K-F(l6) + (8)-|-(4)-(-(2) + 0-5466 gr. in air (*=17-0, b= 754-76).

July 22, 1844. 100 parts = 0-26 grain.

PC No. 1 and hook in water.

In right-hand pan,

H.

P.

gr-

Scale.

0-04

22-0

0-04

22-0

0-08

41-6

0-00

15-7

0-04

22-5

19-4

20-4

0-00

13-0

0-00

7-9

0-00

15-5

0-04

32-8

0-04

21-5

0-00

12-5

0-00

12-5

19-4

20-4

0-0233

19-96