/ 



fS .Yw Captain KaTEr's account of the 



The very near agreement of the preceding result with 

 Mr. Bate's determination, is a sufficient proof of his care, 

 and. of the accuracy with which the avoirdupois pound has 

 been obtained. 



As each of the avoirdupois pounds had certain wires 

 enclosed in it when delivered to me by Mr Bate, the folio w- 

 ingis, an account of the wires they now contain. 



No. 1. contains i wire = ,053 grains. 



2. — 4 wires = ,184 



3. — 4 wires = ,200 

 ^ 4. — Swires = ,250 



.ei2 be/do 5. _ not noted. 



After the adjustment of the avoirdupois pounds was com- 

 pleted, Mr. Bate used the large balance to make an approxi- 

 mate adjustment of the weights of the imperial gallon of 

 distilled water. This was interrupted by an accident which 

 rendered it necessary to repair the knife edges of the beam ; 

 and notwithstanding every care, the balance afterwards 

 proved less certain in its indications than it was before the 

 accident. The error arising from this source I have endea- 

 voured to lessen by increasing the number of comparisons. 



Adjustment of the weights of the imperial gallon of water. 



These weights were distinguished in the following 

 manner : 



