new standards of weights and measures. ip 



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. Whittam'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 : 



