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The samples here noted were cut and piled only once from the muck bar.

A bar of iron which has been rolled twice is formed from a pile of fourteen separate pieces of iron that have been rolled only once, or "muck bar," as it is called; while the thrice-rolled bar is made from a pile of eight separate pieces of double-rolled iron.

The Stevenson Furnace, from 15th to 20th April, produced 29,160 lbs. of Muck Bar, and 515 lbs. of Scrap Bar, worked double turn.

On Stevenson Furnace, 3,963 lbs. more Muck Bar, and 220 lbs. more Scrap Bar were made, with 50 bushels less coal than were used in other furnace.