Showing: 11-20 results of 1453

by: Various
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...

by: Various
THE NAVAL FORGES AND STEEL WORKS AT ST. CHAMOND. With the idyls and historic or picturesque subjects that the Universal Exposition gives us the occasion to publish, we thought we would make a happy contrast by selecting a subject of a different kind, by presenting to our readers Mr. Layraud's fine picture, which represents the gigantic power hammer used at the St. Chamond Forges and Steel Works in... more...

by: Various
A huge agave, or century plant, is now blooming at Auburn, N.Y. A few days ago the great plant became tinged with a delicate yellowish-white color, as its 4,000 buds began to develop into the full-blown flowers, whose penetrating fragrance, not unlike that of the pond lily, now attracts swarms of bees and other insects. The plant was purchased in 1837 by the owner, and was then twelve years old. For... more...

by: Various
PREFACE The recipes in this little book have been sent by Belgian refugees from all parts of the United Kingdom, and it is through the kindness of these correspondents that I have been able to compile it. It is thought, also, that British cooking may benefit by the study of Belgian dishes. The perfect cook, like Mrs. 'Arris or the fourth dimension, is often heard of, but never actually found, so... more...

by: Various
REPORT. On the 13th of February, A.D. 1851, one John Caphart, of Norfolk, Va., came to Boston, in pursuit of one Shadrach, alleged to be a fugitive slave and the property of John Debree, a purser in the navy, and attended by Seth J. Thomas, Esq., as counsel, made his complaint, as agent and attorney of the said owner, before George T. Curtis, Esq., U. S. Commissioner. On the evening of the 14th, the... more...

by: Various
Geographical usage confines to the southern part of the island of Great Britain the name commonly given to the great insular power of western Europe. In this restricted sense the present article deals with England, the predominant partner in the United Kingdom of Great Britain and Ireland, both as containing the seat of government and in respect of extent, population and wealth. 1. Topography. England... more...

by: Various
THE COMPOUND STEAM TURBINE. Last year the whole of the lighting of the Newcastle Exhibition was effected by the agency of seventeen of these motors, of which four were spare, giving in the aggregate 280 electrical horse power. As the steam was provided by the authorities of the exhibition, it was good proof to the public that they had satisfied themselves that the consumption would not be extravagant... more...

by: Various
GUSTAVE TROUVÉ. The accompanying portrait of M. Gustave Trouvé is taken from a small volume devoted to an account of his labors recently published by M. Georges Dary. M. Trouvé, who may be said to have had no ancestors from an electric point of view, was born in 1839 in the little village of Haye-Descartes. He was sent by his parents to the College of Chinon, whence he entered the École des Arts et... more...

by: Various
THE NEW MARVEL IN PHOTOGRAPHY. A VISIT TO PROFESSOR RÖNTGEN AT HIS LABORATORY IN WÜRZBURG.—HIS OWN ACCOUNT OF HIS GREAT DISCOVERY.—INTERESTING EXPERIMENTS WITH THE CATHODE RAYS.—PRACTICAL USES OF THE NEW PHOTOGRAPHY. By H.J.W. Dam. PICTURE OF AN ALUMINIUM CIGAR-CASE, SHOWING CIGARS WITHIN. From a photograph by A.A.C. Swinton, Victoria Street, London. Exposure, ten minutes. N all the history of... more...

by: Various
STEAM ENGINE VALVES. By THOMAS HAWLEY. In considering the slide valve in its simple form with or without lap, we find there are certain limitations to its use as a valve that would give the best results. The limitation of most importance is that its construction will not allow of the proper cut off to obtain all the benefits of expansion without hindering the perfect action of the valve in other... more...