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XXVIII MARINE KEFRIGERATING ICE MAKING MACHINERY Recognized and adopted everywhere as “The Standard for All Marine Installations’? Low upkeep Ruggedness Simplicity Long service Dependability BRUNSWICK-KROESCHELL CO. Manufacturers of Brunswick Ammonia Compressors and Kroeschell CO, Compressors New Brunswick, N. J. New York, N. Y. Chicago, Ill. Visit our booth No. 93 at the Marine Exposition in New York Brunswick Marine Type Ammonia Compressor Over 2000 Machines | Aboard Ship REVIEW Walker’s Patent “Trident” Electric Ship-Log Can be run off the Ship’s Circuit or Batteries By the use of this instrument, the distance run, as indicated by the Log Register on the taffrail, isalso recorded in the Chart House or in any other part of the vessel as desired. This enables the Officer of the Watch to take the Log reading himself. THOS. WALKER &SON,LTD. 58 Oxford Street BIRMINGHAM, ENG. To be obtained through leading Marine Opticians and Ship- Chandlers in the United States and Canada. . Write \ for full - | particu- > lars ‘‘Reading the Log’”’— Taffrail Register in the Chart House USEFUL BOOKS For the Man Who Is Interested IN SHIPS Building the Emergency Fleet—Mattox—$5.90 (25s.) How Wooden Ships are Built—Estep—$3.00 (15s.) Marine Engineers Guide—Audel—$3.00 (15s.) Marine Engineers Handbook—Sterling—$7.00 (35s.) Marine Steam Turbines—Bauer—$4.00 (20s.) Marine Cold Storage Heating and Ventilation on Ship- board—Walker—$2.50 (12s. 6d.) Practical Marine Engineering—Dyson—$6.00 (30s.) Care and Operation of Naval: Machinery—Dinger—$3.00. Steam Boilers—Peabody—$4.00 (20s.) (15s.) Practical Shipbuilding—McBride—$3.00 (15s.) Steel Ships, Construction and Maintenance—Walton— $7.00 (33s.) Practical Shipbuilding, 2 volumes—Holms— $22.50 (£4 12s. 4d.) Navigation—Hosmer—$1.50 (7s. 6d.) Navigation and Nautical Astronomy—Coffin-Collins— $3.00 (15s.) Wrinkles in Practical Navigation, pocket edition— Lonecky $5.00 (25s.) Modern Seamanship, pocket edition—Knight—$3.00 (15s.) Practical Seamanship for Use in the Merchant Service— Todd and Whall—$12.00 (£2 9s. 3d.) Notes on the Practical Duties of Shipmasters—Wilkes— $1.50 (7s. 6d:) The Penton Publishing Company Book Department Penton Bldg., Lakeside Ave. & W. 3rd St. Cleveland, O. 314 I M November, 1923