Book Description

This historic book may have numerous typos and missing text. Purchasers can usually download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1920 edition. Excerpt: ...a plane table with alidade, an aneroid barometer, a prismatic compass, a sextant, a Pittsburg water meter, a current meter, a polar planimeter, and a large assortment of minor accessories for surveying and drafting All the instruments mentioned above are or nrst class make and are in excellent condition. Two of the transits were made by Buf f and Buff, one by Berger, one by Dietzgen, and two by Gurley. One of the latter has a complete solar attachment, and all the transits have vertical circles so that they can be used for stadia work. Two of the levels were made by Buff and Buff, one by Dietzgen, and three by Gurley. The plane table and alidade are of Gurley's best make. The sextant, made by Wegener, has a limb of 160 degrees and reads to ten seconds. The current meter, made by Ritchie, has two wheels for high and low velocities; and a self recording electrical attachment with stop watch. Laboratory of Physics. The laboratory of physics is devoted to instruction in general physical measurements. Special rooms are provided for light and electrical measurement and dark rooms for photometry and photography. The laboratory is provided with apparatus for general physical measurements in mechanics, light, heat, sound and electricity; including a Gaertner dividing engine; Geryk air pump; Genevois cathetometer, optic bench and spectrometers; Kohl chronograph; Dove siren; tangent, d'Arsonval, ballistic and Kelvin galvanometers; meter bridges; condensers; Wheatstone bridges; resistance boxes; and apparatus for the measurement of induction and the magnetic qualities of iron. The photometer room contains a Reichsanstalt photometer of the latest design, having a three-meter scale and provided with accessories for the measurement of artificial light, ...