[ 55 * 3 
When the Averdupois Weight came firft to be 
looked upon as a lawful Weight, does not appear; 
but by thefe Standards it is plain, it has been ufed as 
fuch, ever fince the Reign of Queen Elizabeth . And 
as the Weight of 15 Pounds Averdupois, has before 
been made ufe of, in determining the Proportion 
between the Weight of this Pound and that of the 
Pound Troy, we fhall begin by giving the Counter- 
poife of the faid 1 5 Pound Averdupois , as it was 
found in Troy Weight: From whence we fhall deduce 
the Proportions of thofe Pounds , and afterwards com- 
pare the fame with the like Proportions, deduced from 
t\\z SevenPounds, andfingle P^/^Bell-Weights, and 
the fingle Pound flat Weight above-mentioned : All 
which Weights were taken in the Prefence of the 
above-named Noblemen and Gentlemen, by Mr. 
Samuel Ready Scale and Weight-maker near Alderf- 
gate, who brought to the Exchequer a large Balance 
of his own for that Purpofe, and which, when loaded 
with impounds at each End, was very readily turned 
with Six Grains ; as a lefler one he brought alfo for 
examining the fingle Pound Weights, was with half 
a Grain. He alfo brought with him what he called 
his own Standard Penny and Grain Weights, to fup- 
ply what was necefiary to make the Counterpoife of 
the Exchequer Weights : With all which the Refult 
was, that 
The Standard 14 Pound , and Angle Pound Aver - 
dupois Weights, taken together, were, upon a Me- 
dium of Four Trials, after counterchanging the 
Weights in each Bafon, changing the Bafons, and 
then again counterchanging the Weights, found to 
be counterpoifed by 218 Troy Ounces , 13 Penny- 
weight, 
