ex tent', _space; distance_.
or'di na ry, _common; usual_.
knowl'edge, _that which is known through study_.
de gree', _measure, as of space or time_.
spent, _used up; exhausted_.
snapped, _broken off_.
de tached', _taken away from_.
* * * * *
WHY AN APPLE FALLS.
"Father," said Lucy, "I have been reading to-day that Sir Isaac Newton
was led to make a great discovery, by seeing an apple fall from a tree.
What was there wonderful about the apple falling?"
"Nothing very wonderful in that," replied her father; "but it set him to
thinking of what made it fall."
"Why, I could have told him that," said Lucy; "because the stem snapped
and there was nothing to support it."
"And what then?" asked her father.
"Why, then, of course it must fall."
"Ah!" said her father, "that is the point: why must it fall?"
"I am sure I don't know," said Lucy. "I presume it was because there was
nothing to keep it up."
"Well, Lucy, suppose there was not--does it follow that it must come to
the ground?"
"Yes, certainly," replied Lucy, wonderingly.
"Let us see," said her father; "but first answer this question: What is
an animate object?"
"Any thing that has animal life, and power to move at will," replied
Lucy.
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