Science/Nature Books

The use of electricity in the reduction of metals from their ores is extending so rapidly, and the methods of its generation and application have been so greatly improved within a few years, that the possibility of its becoming the chief agent in the metallurgy of the future may now be admitted, even in cases where the present cost of treatment is too high to be commercially advantageous. The refining... more...

batalões turned from the open waters of the lower Tapajos River into the igarapé, the lily-smothered shallows that often mark an Indian settlement in the jungles of Brazil. One of the two half-breed rubber-gatherers suddenly stopped his batalõe by thrusting a paddle against a giant clump of lilies. In a corruption of the Tupi dialect, he called over to the white man occupying the other frail craft.... more...

THE FRANKFORT AND OFFENBACH ELECTRIC RAILWAY. The electric railway recently set in operation between Frankfort and Offenbach furnishes an occasion for studying the question of such roads anew and from a practical standpoint. For elevated railways Messrs. Siemens and Halske a long time ago chose rails as current conductors. The electric railway from Berlin to Lichterfelde and the one at Vienna are in... more...

IMPROVED FIFTEEN TON CRANE. IMPROVED FIFTEEN TON TRAVELING CRANE.The machine illustrated on first page has been constructed for Port Alfred Harbor, this being one of several harbors now being made by Sir J. Coode in South Africa. The pier for the construction of which the crane will be employed will consist of concrete blocks laid on what is known as the "overend system." The blocks, being... more...

THE CONFLICT. The pyramids, temples and palaces of Thebes are monuments of the ancient intellects of our race. Great thinkers only were capable of giving to the world the Vedas, the Apollo Belvidere and the Parthenon. The arts and astronomy of Egypt harmonize very poorly with the idea that modern scientists have all the wisdom and intelligence known in the history of the ages. Among the wonderful... more...

Two miles west of the village of Laketon there lived an aged recluse who was known only as Old Crompton. As far back as the villagers could remember he had visited the town regularly twice a month, each time tottering his lonely way homeward with a load of provisions. He appeared to be well supplied with funds, but purchased sparingly as became a miserly hermit. And so vicious was his tongue that few... more...

NOTE ON THE CONSTRUCTION OF A DISTILLERY CHIMNEY. FIG. 1—ELEVATION. At a recent meeting of the Industrial Society of Amiens, Mr. Schmidt, engineer of the Steam Users' Association, read a paper in which he described the process employed in the construction of a large chimney of peculiar character for the Rocourt distillery, at St. Quentin. This chimney, which is cylindrical in form, is 140 feet... more...

THE STORY OF THE UNIVERSE. By Dr. WILLIAM HUGGINS. The opening meeting of the British Association was held in Park Hall, Cardiff, August 18, where a large and brilliant audience assembled, including, in his richly trimmed official robes, the Marquis of Bute, who this year holds office as mayor of Cardiff. At the commencement of the proceedings Sir Frederick Abel took the chair, but this was only pro... more...

In consequence of the interest that has been recently excited on the subject of bread reform, we have, says the London Miller, translated the interesting contribution of H. Mège-Mouriès to the Imperial and Central Society of Agriculture of France, and subsequently published in a separate form in 1860, on "Wheat and Wheat Bread," with the illustration prepared by the author for the... more...

~With Discussion by Messrs. Allen Hazen, George A. Johnson,Morris Knowles, George C. Whipple, F. F. Longley, and E. D. Hardy.~ The Washington filtration plant has already been fully described.[2] At the time that paper was written (November, 1906), the filtration plant had been in operation for only about 1 year. It has now been in continuous operation for 5 years, and many data on the cost,... more...