Laboratory exercises in physics for secondary schools (1906)
Twiss, George Ransom, b. 1863 · Chicago, Scott, Foresman and company · leaf 104
d a long rubber tubeterminating in a glass mouthpiece.The glass tubes are secured to ameter stick by rubber bands, andthe meter stick is fastened in avertical position by screw clamps(or by any convenient support).Its end rests on the table-top.The ends of the glass tubes shouldterminate in short… … Fig. 17.—Appara-tus for the determina-tion of relative densityby Hares method. FLUIDS 83 A pinch-cock, or a Hoffman screw-compressor, isplaced above the mouthpiece on the rubber tube, toprevent the ingress of air after it has been withdrawn. Operations. — (a) Remove, rinse, and replace…
Physics
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