BELTS

930	THE COLLIERY GUARDIAN.	April 24, 1914.

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Established 50 Years.

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“GRANVILLE” PIG IRON ('=“>

Steel Pit Girders & Colliery Rails a Speciality; also High-class Bar Iron for Couplings, &c.

IRON & STEEL BARS, ANGLES, TEES, CHANNELS, GIRDERS,
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Demy Octavo, 176 pages, Cloth.	Price 6s. 3d..

45gOriginal Photographs and Diagrams. (post free).

Miners’ Nystagmus:

Its Causes and Prevention,

By T. LISTER LLEWELLYN, M.D., B.S. (Loud.), &c„

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208 pages f’cap folio. Over a hundred illustrations and 60 plates (coloured).

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RECORD OF

FIRST SERIES OF THE

GOAL DOST EXPERIMENTS

CONDUCTED ESY THE

COMMITTEE APPOINTED BY THE MINING ASSOCIATION OF GREAT BRITAIN.

A Record of the Experiments carried out during 1908 and 1909 at the Altofts Experiments Station

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