[ 54 ? 3 
But as feme Gentlemen have fince been defirous to 
know, how far thofc Standards really agreed with the 
Original ones, as they are looked upon to be, in the 
Chamberlains Office of His M a j e s t y 's Exchequer , 
as well as with thofe kept for public Ufe, at Guild- 
hall , at Founder s-hall, with the Watchmakers 
Company, and in the Tower of London . Mr. 
George Graham , F. R. S. was thereupon requefted* 
with iuch other Affiftance as he fhould find neccfiary, 
to take upon him the Comparifon of the faid feveral 
Standards; which he has accordingly done, and 
carefully viewed and examined the fame, at the Ex- 
chequer, on Friday the 22d of April laft, in the Pre- 
fence of the Trefident of the Society, the Right 
Honourable the Earl of Macclesfield , the Right Ho- 
nourable the Lord Charles Cavend/fh, John Hadley, 
Efq* William Jones , Efq; Feter TO aval, Efq, and 
Cromwell Mortimer, M. D. one of the Secretaries; 
and at Guild-hall , Founder s-hall, and the Tower , 
on the Wednefday following, the 27th of the fame 
Month, in the Prefence of all the fame Perfons, Mr. 
Da-val only excepted, who happened to be other- 
wife engaged that Day. All which Gentlemen were 
received with the greateft Civility and Regard, by the 
feveral Officers who have the Care and Keeping of 
the refpedive Standards in Queftion ; who moll 
readily favoured them with the free Ufe and In- 
fpedion of the fame; and feveral of which were 
themfelves alfo pleafed to attend the Examination. 
And, as the Council of the Society have now 
thought fit to dired an Account to be here publifhed 
of thefe Trials and Experiments: We {hall firfi, for 
Order-fake, begin with the Meafure of the Tard', and 
then 
