Stewart, Balfour, 1828-1887 · Toronto : James Campbell · leaf 91
water in theflask. Now cork it tightly, and, withdrawing it fromthe lamp, invert it as in fig. 26. When it hasceased boiling, take a sponge and .pour some cold 8o SCIENCE PRIMERS. [heated water on the flask, when boiUng will again begin.The reason of this is, that before the coid water waspoured on… … pressure ; and since Avater boils more easily at a lowl)ressure than at a high, the water in the flask began,as you saw, immediately to boil. Before leaving this part of our subject, I ought totell you that some bodies expand while others con-tract in the act of melting ; that is to say, in…
Physics
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