...measure ; for the latter, the present parliamentary yard is to be retained, which is to be corrected by the length of a pendulum vibrating seconds of mean time in the latitude of London. The standard •weight is to be the Ib. avoirdupois, •which is to be adjusted by measures of pure...

...measures, that the said yard, hereby declared to be the Imperial standard yard, when compared with a pendulum vibrating seconds of mean time in the latitude of London, in a vacuum at the level of the sea, is in the proportion of thirty-six inches to thirty-nine inches and one thousand three hundred and...

...l.Grecianfoot=12.085 do. 1 French toi6e= 76.7344 do. 25 English yards are. very nearly equal to 23 tunas the length of a pendulum vibrating seconds of mean time in the latitude of .London ; hence if a pendulum which vibrates seconds were divided into 100 equal parts, the standard yard would...

...The invariable natural standard to which reference is to be had for this purpose is directed to be a pendulum, vibrating seconds of mean time in the...of London, in a vacuum at the level of the sea, the length of which, when compared with that of the standard yard, was ascertained by the commissioners...

...and Measures, that the said yard hereby declared to be the imperial standard yard, when compared with a pendulum vibrating seconds of mean time in the latitude of London, in a vacuum at the level of the sea, is in the proportion of thirty-six inches to thirty-nine inches, and one thousand three hundred and...

...which is to be -that proportion which the yard bears to the length of a pendulum, vibrating seconds of time in the latitude of London, in a vacuum at the level of the sea ; which is found to be as 36 inches (the yard) to 39.1393 (the pendulum) ; thus a sure means is established...

...corrections for figure, weight, and buoyancy ; and from this corrected length may be found, by calculation, the length of a pendulum vibrating seconds of mean time in the latitude at which the observation was made. Another reduction of the length of the pendulum is to be made on...

...it has been ascertained by the Commissioners appointed, &c. that the said yard, when compared with a pendulum vibrating seconds of mean time in the latitude of London, and a vacuum at the level of the sea, is in the proportion of 36 inches to 39 inches, and one thousand...

...it has been ascertained by the Commissioners appointed, &c. that the said yard, when compared with a pendulum vibrating seconds of mean time in the latitude of London, and a vacuum at the level of the sea, is in the proportion of 36 inches to 39 inches, and one thousand...

...arrived in operation. The act declares the British imperial yard to bear a certain proportion to the " pendulum vibrating seconds of mean time in the latitude of London, in a vacuum at the level of the sea." It neces-' ; sarily assumes, consequently, 1st. That the length in nature SO referred to, is of an...