20 
Captain Kater's account of the 
576o 
960 
240 
24 
12 
3 
l 
7000 grains. 
In this manner five avoirdupois pounds were made and 
adjusted by Mr. Bate. 
Determination of the Avoirdupois Pound. 
Wishing to avoid the verification of the numerous weights 
used by Mr. Bate, and desirous of arriving at my object by 
a road different from that which he had pursued, I used the 
following method : 
I caused Mr. Bate to make two weights each equal to six 
troy pounds. These I compared with the Imperial Standard 
Troy pound, and the five troy pounds already adjusted. I 
had thus two known weights each equal or nearly so to six 
troy pounds, one of which with the addition of 440 grains 
gave me a weight equal to five avoirdupois pounds, subject 
only to such error as might arise from inaccuracy in the 
grains, and as I had had sufficient proof of Mr. Bate’s care, 
I had little to apprehend on this point. 
The five avoirdupois pounds were then compared with 
each of the six pound weights and 440 grains, and the mean 
