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RE. VV fi. 2 3 Station A: Marine Engines, | Boilers and Equipment. In sizes 15 to 500 H.P. Strictly modern and first-class Marine Work at fair prices. Catalogue free. MARINE IRON WORKS, | CHICAGO, U.S.A. Best Form Dry Dock. -- Crandall's Modern Marine Ry's. SAFE. # RAPID. Built of Steel or Wood any size. H. I. Crandall & Son Co., (INCORPORATED. ) Contracting Engineers, EAST BOSTON, MASS., U.S. A. 5 ll a U M4) fl Automatic L Injector ACKNOWLEDGED THE BEST =~ Anywhere and everywhere that an injector can be used the U. 5. AUTO- = MATIC INJECTOR is regarded as invincibly superior and supreme. It instantly wins favor with every practi- cal engineer, because of its great sim- plicity. durability and reliability. EASIEST ©O OPERATE -- be- gins to work when steam is turned on --WIDER RANGE-starts at lower steam pressure and works to higher ~ than any other--handles hotter water --may be used as lifting or non-lifting injector. The U._S. Government recommends the U.S. INJECTOR as THE BEST and over 200,000 engi- neers use It. FREE. Our Engineer's Red Book sent on request. Contains a veritable mine of valuable information. Write aS |for it and our catalog ST showing complete and 'unequalled line of injectors \€ 'ejectors, fire plugs, water ; \heaters, grease cups, etc. : pasa ale AMERICAN INJECTOR CO., Detroit, Mich.,U.S.A. Each U.S. INJECTOR is carefully tested and its capacity and range certified to. Buy from your dealer. Demand the genuine--" U. S." stamped on each. The Success and Safety of the Plant depend on the ENGINEER and the INJECTOR The best way to insure yourself against Injector troubles is to insist on the PENBERTHY AUTOMATIC INJECTOR It has a record for satisfactory service that can- not be approached by any other injector made. The aggregate sales equal the combined sales of all-other automatic injectors on the market. Its simplicity, re- liability, economy and durability have made it the uni- versal favorite. Seldom in need of repairs, but easy to repair when new parts are necessary, without leaving - the factory. This is but one of the many specialties for engineers described in our calalog. A copy should be in the hands of every progressive engineer who wishes to keep abreast of his profession. Write for it to-day. Penberthy Injector Company Largest manufacturers of Injectors in the World, _ 351 Holden Ave., DETROIT, MICH. PENBERTHY INJECTOR CO., Ltd. Windsor, Ont. P.S.--Wesend the Penberthy Bulletin, full of the latest engin- eering information, for three months, free, on request.