Editors Second Edition TALCOTT WILLIAMS, LL.D., L.H.D, Litt. D. First Authority Regarding War The deep-rooted causes of the war are presented in this Encyclopædia. Each article is written with an interest, clearness, authority and conciseness unparalleled in any other reference book. This revision will chronicle the actual facts of the war; it will contain new maps of the countries involved, a description of the most recent engines of war, biographies of leaders in this greatest of tragedies, and a record of the effects of the war upon belligerent and neutral nations. It presents latest information regarding different countries, which facts are valuable to manufacturers or business men seeking a market for American goods. 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Publishers T.W. 2-15 Dodd, Mead & Company Publishers 449 Fourth Ave. New York City Send me full information regarding your Second Edition of the New International Encyclopædia, with details of special price, etc. Name On the mountain divisions of America's railroads the safety of hundreds of passengers and equipment to the value of many thousands of dollars depends almost every day on the bravery and resourceful- ness of brakemen, firemen, and engineers. Where do the companies The volunteer aboard the deep water diver fears chlorine gas. Throwing the Voice Across the Continent . First, wonder of wonders, we talked from Boston to New York. Today we are opening the continent, for New York talks to San The American city that wages it has forgotten what flies look like A tiny invisible alcohol light keeps the great arc of the new search- Bucking Horse Earned $100,000 "Old Steamboat" is dead-man never tamed him How the railroads are reclaiming iron once sold for almost nothing How the engineers threw the remarkable siphon across the swift The first to come and the last to leave the Arctic are the boats of Theodore William Richards is one of the greatest chemists who ever lived, and one thousand men, known for science, have voted to honor him as one of their twelve greatest 894 Jesse K. Brown 928 Technical World Magazine should be on the news stands on the 17th of the month preceding the date of issue. Patrons unable to get the magazine on the 17th will confer a favor by notifying the Circulation Manager. 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