.cxrpy |C2^ ■■■■ HiBIIial T^T<JK->^Z7 (g}^<Lh> [Entered at the Post Office of New York, N. T., as Second Class Matter. Copyrighted, ]889, by Munn & Co.] A WEEKLY JOURNAL OF PRACTICAL INFORMATION, ART, SCIENCE, MECHANICS, CHEMISTRY, AND MANUFACTURES. Vol. LX.-No. 13."1 NEW YORK, MARCH 30, 1889.… … arranged in pairs, the wires of each Fig. l.-CELLAR, SHOWING TERMINALS OF SUBWAYS AND ENTRANCE OF TELEPHONE CABLES. pair being twisted about each other. The object of this disposition is to ultimately use the wires in complete metallic circuits, the twisting of each pair being for the purpose of…
Patents · Spring · Contained · Munn · Scientific American · Adapted · Spring jack · Horse power · Electric light · Electric motor · Cast Iron · Steel shaft · Northern pacific · American supplement · Express money
Internet Archive · Public domain (published before 1931). Free to use for anything.
![An illustration from XIXe [i.e. Dix-neuvième] siècle (en France); classes - moeurs - usages - costumes - inventions. Ouvrage illustré d'un front. chromotypographique, de 16 planches coloriées aux patrons, de 36 entetes et lettres ornées et de 487 gravures (dont 24 tirées hors texte) d'après les principaux artistes du siècle (1893)](https://img.insideoutlibrary.com/img/200/ia-xixeiedixneuvi00granuoft-802-610.webp)
