Week Ending December 28 1889. Price 10 cents. For sale by all newsdealers. Estimation of Silica.-By GEORGE CRAM.-A new by the action of hydrofluoric acid.-A very ingenious contribution ter national and local roads peculiar features of construction introduced by the circumstances of the case involving very interesting calculations on the wave motion to which the floats will be subjected 656 IV. IRRIGATION.-Arid Lands of the United States.-The points made in an address by Major JOHN W. POWELL upon the prob lem of irrigation now before the people of the United States with proposed method of governmental dealing with the subject 664 Curves.-By Prof. C. W. M ACCORD.-An examination of the point on a curve termed the witch of Agnesi.-A curious example of curved drawing with the instrument illustrated.-3 illustrations 659 The Heliograph and Heliographic Signaling.-eliographic sur ployed by the United States Signal Service.-5 illustrations 660 VI. MISCELLANEOUS.-About Building Associations.-The much vexed subject of loan and building associations investigateda 663nd a common sense view taken of the scheme Elias Parkman Needham.-Biographical sketch of the inventor of the parlor organ 664 The Nitrate Works of Chile-An interesting review of the ex traction of Chile saltpeter with a view of the fields where it is found and the process of extraction.-1 illustration 660 VII. NAVAL ENGINEERING.-New Torpedo Boat for India.-A government her dimensions etc.-1 illustration VIII. PHOTOGRA PH Y.-A New Magnesium Flash Lamp.-A very production by recent processes described with full details 661 IX. PHYSICS.-A Trick Based upon the Principle of Inertia.-A very tion 663 663 Lion. SPILLER.-A very interesting paper on this much discussed prob sense. 665 for use in printing offices for drying sheets of books.-1 illustra tion 659 GIITTMANN.-A very curious and deep investigation of the his 661 THE ELECTRIC -LIGHT TROUBLES IN NEW YORK. POSITION OF THE PLANETS FOR JANUARY. MERCURY SATURN JUPITER
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Week Ending December 28 1889, Price 10 cents, sale, newsdealers, Estimation, Silica.- GEORGE CRAM.-A new, action, hydrofluoric acid.-A, ingenious contribution ter national, local roads peculiar features, construction introduced, circumstances, case involving, interesting calculations, wave motion, floats will, subjected 656 IV, IRRIGATION.-Arid Lands, United States.- points, address, Major JOHN W, POWELL upon, prob lem, irrigation now, people, United States, proposed method, governmental dealing, subject 664 Curves.- Prof, C, W, M ACCORD.- examination, point, curve termed, witch, Agnesi.-A curious example, curved drawing, instrument illustrated.-3 illustrations 659, Heliograph, Heliographic Signaling.-eliographic sur ployed, United States Signal Service.-5 illustrations 660 VI, MISCELLANEOUS.- Building Associations.-, vexed subject, loan, building associations investigateda 663nd, common sense view, scheme Elias Parkman Needham.-Biographical sketch, inventor, parlor organ, 664, Nitrate Works, Chile- interesting review, ex traction, Chile saltpeter, view, fields, process, extraction.-1 illustration 660 VII, NAVAL ENGINEERING.-New Torpedo Boat, India.-A government, dimensions etc.-1 illustration VIII, PHOTOGRA PH Y.-A New Magnesium Flash Lamp.-A, production, recent processes described, full details, 661 IX, PHYSICS.-A Trick Based upon, Principle, Inertia.-A, tion 663 663 Lion, SPILLER.-A, interesting paper, discussed prob sense, 665, printing offices, drying sheets, books.-1 illustra tion, 659 GIITTMANN.-A, curious, deep investigation, 661, ELECTRIC -LIGHT TROUBLES, NEW YORK, POSITION, PLANETS FOR JANUARY, MERCURY SATURN JUPITER, science, scientific, sciences, mind, health, tech, sustainability, publication, lab, sciam, sa, scientist, research, american, experiment, education, discovery, technology, analysis, magazine, u.s., insights, developments, weekly, broadsheet, inventor, innovation, inventions, patented, industrial revolution, emerging, trends, monthly magazine, united states, engravings, curious works, paper, discover, Scientific Paper, Weekly Journal, Practical Information, Art, Science, Mechanics, Chemistry, Manufactures, research, education, scientist, innovation, 19th century, vintage, america, Rufus M. Porter, 1845, journal, academic, newspaper illustrations, retro style, old-fashioned, media illustrations, victorian style, news, newspaperheadline, 19th century style, illustration, journalism
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