S.exploitation et revue d'ingénierie . ave a justifié le Conseil en déclinant l'offre favorable soumise !> la NationalTrading Company. Compte tenu de toutes les circonstances, et après l'enquête la plus attentive, l'appel d'offres de la National Trading Company a été accepté PROPRIÉTÉS D'AMIANTE et LES FIBRES SONT ACHETÉES PAR AFRICAN AMIANTE MINING CO., LTD P.O. Box 504, BULAWAYO Telegrammes : Safasco, Bulawayo Tbone No. 356 Johannesburg correspondants .—HUGGINS & CO., LTD.Consolidated Building JOHANNESBURG Telegrammes t Turbrot P.O. Bat S1CS iPhon* 574 .V.I8 THE S.A. MINING AND ENGINEERING JOURNAL. >urg

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S.Amining and engineering journal . ave justified the Boardin declining the favourable offer submitted !> the NationalTrading Company. In view ot all the circumstances, andafter the most careful investigation, the tender of theNational Trading Company was accepted ASBESTOS PROPERTIES and FIBRE ARE PURCHASED BY AFRICAN ASBESTOS MINING CO., LTD. P.O. Box 504, BULAWAYO Telegrams : Safasco, Bulawayo Tbone No. 356 Johannesburg Correspondents .—HUGGINS & CO., LTD.Consolidated Building JOHANNESBURG Telegrams t Turbrot P.O. Bat S1CS iPhon* 574 .V.I8 THE S.A. MINING AND ENGINEERING JOURNAL. >urg, December 24, 1921. Making Bridges out ofOld Ropes. We have received from Mr. C. M. Rasmussen, rigger, ofP.O., Linden. Johannesburg, the following account of abridge which he has constructed in the Eastern Transvaalout of disused wire rope. It seems to us that transportconditions in the outlying districts could be substantiallybettered l> the employment of methods such as are dis-cussed in the accompanying brief article.. Swinging Bridge over Crocodile River. Swinging Bridge across the Crocodile River when inFlood, near Barberton.—The structure is very strong. Abridge of this nature will carry several tons weight, and canbe erected to carry any weight desired for wagons, etc. Itcan be erected in a very short time and at a very small cost;this bridge was erected complete in one week, with aboutfive natives, from discarded 1 in. wire ropes several hundred tret long. Method of Construction.—First, two posts were cross-braced about 15 feet apart and 30 feet high (according tothe height of the river when in flood) and were erected oneach side of the river. Next, two strong wire ropes werestretched across the river suspended on top of tressles; alllour ends were anchored, and the bridge was then erected, hanging in the wire ropes. Bolts according to strength ofbridge required are bolted on to the wire ropes every 6 feet, and to the bottom part of bolt is a railway sleeper or

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