The following standards were constructed under the direction of the Commissioners of Her Majesty's Treasury, after the destruction of the former imperial standards in the fire at the Houses of Parliament.

The imperial standard for determining the length of the imperial standard yard is a solid square bar, thirty-eight inches long and one inch square in transverse section, the bar being of bronze or gun-metal; near to each end a cylindrical hole is sunk (the distance between the centres of the two holes being thirty-six inches) to the depth of half an inch, at the bottom of this hole is inserted in a smaller hole a gold plug or pin, about one-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 axis of bar; the measure of length of the imperial

standard yard 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 in this Act referred to as the centres of the said gold plugs or pins; and such bar is marked "copper 16 oz., tín 24 zinc 1. Mr. Baily's metal. No. 1 standard yard at 62°-00 Fahrenheit. Cast in 1845. Troughton & Simms, London."

The imperial standard for determining the weight of the imperial standard pound is of platinum, the form being that of a cylinder nearly 135 inch in height and 1-15 inch in diameter, with a groove or channel round it, whose middle is about 0.34 inch below the top of the cylinder, for insertion of the points of the ivory fork by which it is to be lifted; the edges are carefully rounded off, and such standard pound is marked, P.S. 1844, 1 lb.

The following copies of the standards above mentioned in part one of this schedule were constructed at the same time as the above standards. They are of the same construction and form as the above standards, and they are respectively marked and deposited as follows:(1.) One of the copies of the imperial standard for determining the imperial standard yard, being a bronze bar, marked "copper 16 oz., tin 2, zinc 1. Mr. Baily's metal. No. 2 standard yard at 61°.94 Fahrenheit. Cast in 1845. Troughton & Simms, London;' and one of the copies of the imperial standard for determining the imperial standard pound marked No. I., P.C. 1844, 1 lb., have been deposited at the Royal Mint;

(2.) One other of the copies of the imperial standard for determining the imperial standard yard, being a bronze bar, marked

copper 16 oz., tin 24, zinc 1. Mr. Baily's metal. No. 8 standard yard at 62°-10 Fahrenheit. Cast in 1845. Troughton & Simms, London," and one other of the copies of the imperial standard for deter

mining the imperial standard pound marked No. 2, P.C. 1844, 1 lb., have been delivered to the Royal Society of London; (3.) One other of the copies of the imperis! standard for determining the imperial standard yard, being a bronze bar, marked

copper 16 oz., tin 2, zinc 1. Mr. Baily's metal. No. 5 standard yard at 62 16 Fahrenheit. Cast in 1845. Troughton & Simms, London," and one other of the copies of the imperial standard for determining the imperial standard pound marked No. 3, P.C. 1844, 1 lb., have been deposited in the Royal Observatory of Greenwich; (4.) The other of the copies of the imperial standard for determining the imperial standard yard, being a bronze bar, marked "copper 16 oz., tin 2, zinc 1. Mr. Baily's metal. No. 4 standard yard at 61°98 Fahrenheit. Cast in 1845. Troughton & Simms, London," and the other of the copies of the imperial standard for determining the imperial standard pound marked No. 4, P.C. 1844, 1 lb., have been immured in the New Palace at Westminster.