PHILOSOPHY. 85

box, with a picture pasted on the back part, in-
side, and a small hole opposite to the picture to
look through. Suppose that there was also a hole
in the side of the box, to let ina little light. Now,
suppose that you were to bring your eye up sud-
denly to the eye-hole, in the daytime, and also in
the night; in which case do you think that you
could see the picture most distinctly ?”

*T don’t know,” said Lucy.

“Tn the night,” said Robert.

“Why ?” asked Lucy’s mother. .

“Because,” said Robert, “I can always see
down cellar better in the night than I can in the
daytime ; and that is something like it.”

“ But I can see down cellar better in the day-~
time,” said Lucy.

“That is because our cellar is lighted with
windows,” said her mother. “ But yours, Robert,
is dark, I suppose.”

“ Yes, ma’am,” said Robert ; “I never heard of
windows in a cellar.”

“They sometimes have windows in a cellar,”
said Lucy’s mother, in reply. “ But where there
are no windows, and you have to take a light
down, it is much more difficult to see in the day-
time than in the night. So it would be in such a
box. If you were to come up to it suddenly in the