THE NEW NATIONAL STANDAED OE LENGTH, AND ITS PEINCIPAL COPIES. 69!:) 
Tenth of an Inch in Diameter, and upon the Surface of this Pin there are cut Three 
fine lines at Intervals of about the One Hundredth Part of an Inch transverse to the 
Axis of the Bar, and Two Lines at nearly the same Interval parallel to the AlxIs of the 
Bar ; the Measure of Length is given by the Interval between the Middle transversal 
Line at one End and the Middle transversal Line at the other End, the Part of each 
Line which is employed being the Point Midway between the longitudinal Lines ; and 
the said Points are herein referred to as the Centres of the said Gold Plugs or Pins : 
And whereas the Standard of Length so constructed as aforesaid, the Bronze Bar, being 
marked “ Copper 16 oz.. Tin 2^, Zinc I. Mr. Baily’s Metal. No. I. Standard Yard at 
62°-00 Faheexheit. Cast in 1845. Teoughton and Simms, London,” and the said 
Standard of Weight marked P.S. 1844, lib., have respectively been deposited in the 
Office of the Exchequer at Westminster^ and One of the said Copies of the said Standard 
of Length, the Bronze Bar, being marked “ Copper 16 oz.. Tin 2^, Zinc I. Mr. Baily’s 
Metal. No. 2. Standard Yard at 6I°‘94 Faheenheit. Cast in 1845. Teoughton and 
Simms, London,” and One of the said Copies of the Standard of Weight marked No. I, 
P.C. 1844, I lb., have been deposited at the Royal Mint; and One other of the said 
Copies of the Standard of Length, the Bronze Bar, being marked “ Copper 16 oz.. Tin 2|, 
Zinc I. Mr. Baily’s Metal. No. 3. Standard Yard at 62°T0 Eaheenheit. Cast in 
1845. Teoughton and Simms, London,” and One other of the said Copies of the 
Standard of Weight mai-ked No. 2. P.C. 1844, lib., have been delivered to the Royal 
Society of London ; and One other of the said Copies of the Standard of Length, the 
Bronze Bar, being marked “ Copper 16 oz.. Tin 2^, Zinc I. Mr. Baily’s Metal. No. 5. 
Standard Yard at 62°T6 Eaheenheit. Cast in 1845. Teoughton and Simms, London,” 
and One other of the said Copies of the Standard of Weight marked No. 3, P.C. 1844, 
I lb., have been deposited in the Royal Observatory of Greenwich ; and the other of the 
said Copies of the Standard of Length, the Bronze Bar, being marked “ Copper 16 oz.. 
Tin 2L, Zinc I. Mr. Baily’s Metal. No. 4. Standard Yard at 6I°-98 Eaheenheit. 
Cast in 1845. Teoughton and Simms, London,” and the other of the said Copies of the 
Standard of Weight marked No. 4. P.C. 1844, I lb., have been immured in the Cill of 
the Recess on the East Side of the Lower Waiting Hall in the New Palace at West* 
minster : And whereas it is expedient to legalize the Standards so constructed and to 
pro\ide for the Preservation thereof: Be it therefore enacted by the Queen’s most 
Excellent Majesty, by and with the Advice and Consent of the Lords Spiritual and 
Temporal, and Commons, in this present Parliament assembled, and by the Authority of 
the same, as follows : 
“ I. So much of the said Act of the Fifth Year of King George the Fourth as relates to 
the Restoration of the Imperial Standard Yard and of the Standard Troy Pound respect- 
ively, in case of Loss, Destruction, Defacement, or other Injury, shall be repealed. 
“ H. The straight Line or Distance between the Centres of the Two Gold Plugs or 
Pins in the Bronze Bar deposited in the Office of the Exchequer as aforesaid shall be 
the genuine Standard of that Measure of Length called a Yard, and the said straight 
