February 2. 1917. THE COLLIERY GUARDIAN. 213 of its utility. gives the desired lightness, but is far more attractive in appearance. Hy-Rib is a Ribbed Steel Lath which needs supports at I Oft. centres only, and readily takes 2 in. of cement plaster. Its use ensures the most rapid permanent con- struction possible, the building costs little or nothing for maintenance and is superior in every way to the usual type of building. Illustration shows the Sharlston Colliery erected on this principle. Send for Handbook and learn Colliery Buildings / Ml B Its ail in the rigid Rib. No more unsightly buildings ! type of The nature of the ground in colliery districts necessitates a light weight account of ground trouble many unsightly structures of timber and corrugated iron have There is no longer any need for this. A building erected with Hy-Rib and structural THE TRUSSED CONCRETE Co. s Pit Head Buildings, STEEL C° LTD 64, CAXTON HOUSE, WESTMINSTER, S.W. building. On been erected. steel not only THE! NEW EXPLOSIVES COMPANY Ld. ESTABLISHED 1865. -------Manufacturers of --- Every description of High Explosives for Mining and Blasting Purposes. STOMONAL No. 1. The Ideal “Permitted” Explosive for Coal Mines. Particulars and Prices on application to the Company or any of their Agents. Works: Stowmarket, Suffolk. Head Office: 62, London Wall, London, E.C.