Gage, Alfred P. (Alfred Payson), 1836-1903, Fessenden, C · Toronto : W.J. Gage · leaf 406
rotate the tube, and raise or depress the mirror by means of thestring, so as to adapt it to the position and elevation of the sun in theheavens, and then fasten by means of the bolt and string. A win-dow on the south side of a building should be selected for experimentswith this apparatus. The… … 384 APPENDIX. SECTION I. Resistance and Weight Table for Cotton and SilkCovered and Bare Cotton Wire.—By Browne & SharpesAmerican Gauge. The resistances are calculated for pure copper wire.The number of feet to the pound is only approximate for insulatedwire. 2o 1 Feet per Poond. Re^9Tance…
Physics
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