Coatbridge.
Glenboig Star Works.—The Glenboig Star Fire Brick Works produce bricks, retorts, furnace-blocks and similar goods.
Glenboig Fire-Clay Works.—These works belong to the Glenboig Fire-Clay Company, and produce sewage and sanitary pipes, &c., retorts, fire-bricks, &c.
Cardowan and Heathfield Works.—The first of these works, belonging to Messrs. John Young and Son, was built in 1852 by Messrs. John Hurll and John Young, previous to that time of the Garnkirk Company. The clay is the Garnkirk seam, and is of much the same character as the Stourbridge clay. The Heathfield Works were acquired about 1860 from Messrs. Miller and Ferguson (which see), and were largely extended and altered, and improved machinery introduced. The clay was won at 350 feet, passing through a solid bed of freestone of 120 feet, giving off much water; the seam itself is known as the Glenboig seam of clay, as it was first wrought at the “Glenboig Works,” with which Mr. Young was also till quite recently, a partner. At the “Cardowan Works” the firm manufacture the usual varieties of fire-bricks, blast-furnace blocks, gas retorts and fittings, vases, garden edgings, and plain and ornamental chimney shafts. At the “Heathfield Works” they produce fire-bricks, and vitrified salt-glazed pipes for sewerage and water purposes, and invert sewer blocks and all the usual salt-glazed articles. In 1874 Messrs. Hurll and Young dissolved partnership; Mr. Young, along with his sons John and Robert, being now the sole proprietors. The product of these works when in full work is about 20,000 fire-bricks per day and about 1,500 yards of pipes weekly.