19 
new standards of weights and measures. 
me had been adjusted by Mr. Bate, and with the exception 
of an excess of one hundredth of a grain common to all, 
and which appears to have been the error of the copy taken 
at Mr. Whitt am’s, the greatest difference from the preced- 
ing results did not exceed four or five-thousandths of a 
grain. 
The adjustment of the five troy pounds occupied me from 
the commencement till the middle of March 1825, during 
which time Mr. Bate was engaged in preparing a balance 
sufficiently strong to be used in determining the gallon 
weights ; this balance was brought to my house on the 16th 
of March. 
I shall now proceed to describe the manner in which the 
avoirdupois pound was derived from the troy pound. 
For this purpose Mr. Bate made the following weights : 
1 of 5760 grains. 
2 — 2880 
3 — 960 
2 — • 480 
2 — 240 
5 — 48 
2 *— 24 
2 — 12 
2 — - 6 
2 — 3 
3 — 1 
In all twenty-six weights. 
Of the above weights the following were used to make up 
an avoirdupois pound : 
