Merchant, F. W. (Francis Walter), 1855-1937, Fessenden, Cortez, b. 1852 · Toronto : Copp, Clark · leaf 117
108 PHYSICAL SCIENCE. with an air pump or an aspirator(Fig. 74). 1. What change takes place in the/ position of the rubber membrane ? 2. What causes this change ? Turn the tube so that the mem-brane may face upwards, downwards,and in various directions. 1. Does the position of the mem-brane change… … Fig. 74. Experiment 3. Place a receiver on the plate of an air pump, and exhaustthe air from the receiver (Fig. 75).
Physics
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