49 
new standards of weights and measures. 
I cannot conclude without bearing testimony to the un- 
wearied perseverance, ability and accuracy, which Mr. Bate 
has shown in the course of a work attended with no common 
difficulties, and to the perfect execution of which he has 
devoted, for a long period, the whole of his time and 
attention. 
From what has been said, it will be seen that the length 
of the pendulum vibrating seconds in London has been found 
in parts of the imperial standard yard ; consequently, the 
value of the yard may at any time be known, having been 
referred to a natural standard presumed to be unalter- 
able. The length of the French metre, a standard expressing 
a certain portion of a terrestrial meridian, has also been 
given in parts of the English scale. The weight of a cubic 
inch of distilled water has been determined in parts of the 
imperial troy pound ; and thus the pound, if lost, may at any 
future age be recovered. The avoirdupois pound is now for 
the first time defined, and the measures of capacity are made 
to depend upon the weight of water they contain ; the impe- 
rial gallon, containing ten pounds avoirdupois of water, 
having been declared to be the unit or only standard measure 
of capacity from which all others are to be derived. This 
it is to be presumed cannot but powerfully tend to produce 
uniformity throughout the United Kingdom, by putting it in 
the power of every individual possessed of standard weights, 
to verify his measures of capacity with the utmost facility. 
London, November, 1825. 
MDCCCXXVI. 
H 
