"
Then Uncle WILLIAM regretted that he had paid less attention in his
youth to the shilling science primers, but he pulled himself together
and determined to do his best. "Certainly, my dear children, nothing
could please me more. Now here I have a jug and a glass. You will
observe that I pour some water from the jug into the glass. This
illustrates one of the properties of water. Can you tell me what I
mean?"
"Fluidity!" said both the children, with enthusiasm.
"Yes, quite so, and--er--er--has a brick fluidity?"
"Why, no, Uncle WILLIAM!"
"Well--er--_why_ hasn't it?" asked Uncle WILLIAM, with something
almost like desperation in his voice.
"That, Uncle," said the obedient CHARLIE, "is one of the things which
we should like to learn from you to-night."
"Yes, we shall come to that; but, in order to make you understand it
better, I must carry my experiment a little further. In this decanter
I have what is called whiskey. I pour some of it into the water.
Now it is more usual to put the whiskey in first, and the water
afterwards. Can you tell me why that is so? Think it out for
yourselves.
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