210 THE COLLIERY GUARDIAN. July 30, 1915. Polish HD Certainty—Economy—Cleanliness. TAUFFER’S LUBRICANT” Regd. Trade Mark. TANDARD MACHINE GREASE MADE SOLELY for OVER 30 YEARS by TRIER BROS. Ltd., AT THEIR CUMBERLAND WORKS, LONDON, S.E. Office : Caxton House, Westminster, S.W. Patent STAUFFER “ TELL-TALE ” Lubricators. and Agent for Northern Counties— Messrs. JOHN YOUNG & SONS, St. Nicholas Chambers, Newcastte-on-Tyno. THE Corlett Electrical Engineering Co. Ld. T’phone— WTHAN T’gram— 63 Wigan. “Corlett, Wigan.” Contracts Dept. - Ref. C.D. Manf* & Repairs Dept. - Ref. W.D. Stores Dept. - Ref. S.D. q g // Electric Lighting, '/ Electrical Power Engineers, / Electrical Power Transmission. Telephone Bell 829. Brand Tel. Address: Vinco, Glasgow.” *Vinc o’ Miners’ & Sinkers’ OILSKIN CLOTHING A Special Feature. At Keenest Prices. Everything in Oilskins for Town & Country Wear. AT. BARR & Co. Ld. 83, Hutcheson St., GLASGOW. Contractors t;o tlxe Admiralty & Xumevous Corporations, FOR SALE OR HIRE. Hire terms fur- nished on appli- cation. NAYLOR’S APPROVED BIFOLD MARSAUT LAMP. Gives the best light, is the best Gas Detector, and the Safest Flame Lamp procurable. NEW MINES ACT. Approved Miners’ Lamps TO MEET ALL REQUIREMENTS OF THE ACT. Arranged for Electric Ignition and with Mag- netic Lock. Particular* furnished on application Demonstrations arranged by appointment. «/. H. NAYLOR, Central Brass Works, Established 1861. WIGAN. Telephone—3130 Central; 547 Broomhill. coates & co., Electrical Engineers and Power Contractors. Experts in Dynamo and Motor Repairs. COLLIERY REPAIRS A SPECIALITY. Stuff avai able day or night. Promptness and reliability assured. Patentees of New System of Underground Wiring, Stronger, Simpler and Easier of Erection than any other. We shall be pleased to advise you. Write for particulars of our Patent Boxes. On Admiralty List of Contractors. x m may be so, but some officials ‘‘get tired of waiting till <*- the Home Office forces us to adopt shaft safety tackle,” and there comes a time when every shaft pit manager or engineer ‘‘would dearly like to have Cage Arresters on their Cages,” or shaftmen “ w uld like one of them Holdemrite things;” officials ‘‘get ashamed at looking at their unguarded cages,” or *‘ of allowing their shaftmen to be without proper safety belts.” So it happens, I’ve designed and sold more cage and men arresters in the shaft than ALL the other 1,600 British inventors put together. Why ? Well,first the things are ALL RIGHT; then I’m the only one of 1,600 inventors that has confidence in British mining engineers’ willingness ‘‘ to adopt any good thing for safety in the shaft,” and some seize the chance of getting things on approval. You see the man with the right goods wins all arguments, and a penny letter easily gets the proper things for safety. 7 ake the latest. The HOLDEMTITE is a proper Safety Belt Rig for shaft and high scaffold men. All the fixings and the sling (A) are at the back. The man is Right before, and after he slips is held by the strong parts of his body. It is 3 lb. weight, 5,000 lb. strength. Price £12 per doz. Then the HOLDEMUPRITE is really a combined (1) flexible Safety Cage to ride men upright up and down narrow shafts, chimneys, street manholes, etc.; (2) Safety Belt-Rig; (3) Bosun’s Chair in which a man can SIT or STAND any length of time to do any work in shafts, on buildings, chimneys, etc. You can raise a dozen men in an emergency. Price is 30s. each, £14 per doz. You see, with these and other Hanley appliances, we can easily clean the pit shaft of its daily disasters and—well its an order-book man’s question.— A SAFETY FIRST IN THE SHAFT OFFICIALS’ question. ALL - RIGHT CAGE ARRESTERS ; ROPE and GUIDE DAPPLES and TENSION GEARS, SAFETY HOOKS; HOLDEM- RITES and Holdemwells (Safety Clips). Also CORNER PLATES and SIDE BRACKETS for wood pit tubs. Details & prices, A. HANLEY, 21, Alpha Rd., Bristol. John Russell & Co. Lo Demy Octavo, 176 pages. Cloth. Price 6b. 3d. 45 Original Photographs and Diagrams. (post free). ALMA TUBE WORKS, WALSALL FITTINGS OF ALL KINDS AND FOR ALL PURPOSES. PECKETT & SONS Ltd., Bristol Speciality TANK LOCOMOTIVES. Miners’ Nystagmus: Its Causes and Prevention, By T. LISTER LLEWELLYN, ID., B.S. (Load.), 4c. WITH A PREFACE BY Professor J. S. HALDANE, F.R.S., M.D., AND A LEGAL APPENDIX BY DOUGLAS KNOCKER, MB., Barrister-at-Law. Locos, of various sizes specially designed, for Collieries, Ironworks, Contractors, 4c. always in progress for Early Delivery. Photographs, Prices and Specifi- cations on application. Telegraphic Address—** Peokett, Bristol.’" Telephone—No. 6 Fishponds. ESTABLISHED 1864. 0 CONTENTS. Description of the Eye—Anatomy: Physiology—(1) General Description of the Disease—(2) Frequency and Resulting Incapacity—(8) Historical Account of the Disease and Theories of its Causation—(4), (5) and (6) Conditions Determining the Occurrence of Nystagmus—(7) Diagnosis and Prognosis—(8) The Etiology of Nystagmus—(9) Pre- ventive Measures and Treatment—(10) Summary and Conclusions — With Appendices: Legal Information — Glossary—References and Bibliography—The Effects of Deficiency of Oxygen on the Light of a Safety Lamp- Test of Ceag Lamp. THE COLLIERY GUARDIAN CO. LTD., 30 & 31, Furnival Street, Holborn, London, E.C. ^ANTHRACITE CORL PLANT BREAKING We have Specialised in this class of Machinery, and have designed and made more than all other firms combined. References to Users are invited. Established 50 Years. fSHiPPURM LTD., BRIDGEND, SOUTH WALES/