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Seite 78 - The Committee on Science and the Arts constituted by the Franklin Institute of the State of Pennsylvania, for the promotion of the Mechanic Arts, to whom was referred for examination a Solar Compass, invented by WM.
Seite 211 - ... to the author of any important discovery or useful improvement in light or in heat, which shall have been made and published by printing, or in any way made known to the public, in any part of the continent of America, or any of the American islands ; preference being always given to such discoveries as shall, in the opinion of the Academy, tend most to promote the good of mankind...
Seite 360 - ROEBLING (JA) Long and Short Span Railway Bridges. By John A. Roebling, CE Illustrated with large copperplate engravings of plans and views.
Seite 288 - DRAWING. rilHE subscriber would respectfully inform his friends and the public, that he conJL tinues to give instruction in MACHINE, ARCHITECTURAL, TOPOGRAPHICAL, and LANDSCAPE DRAWING, and PAINTING in OIL and WATER COLORS. Day and Evening Classes at the office, and instructions given in Schools and Families.
Seite 168 - The time will come when people will travel in stages, moved by steam engines, from one city to another, almost as fast as birds fly, fifteen or twenty miles an hour.
Seite 216 - ... official examination. Inventors who desire to consult with us are cordially invited to do so. We shall be happy to see them in person at our office, or to advise them by letter. In all cases, they may expect from us an honest opinion. For such consultations, opinion and advice, we make no charge.