But how do you know all this?
DR. BARTLETT.
By careful investigation; and as you are fond of reading, you may yourself be convinced of it; Charles will lend you the Spectacle de la Nature[[1]]. In that excellent book you will find instruction delivered in an easy manner.
[1]. On this subject a more useful book has been lately published, entitled, An Introduction to Astronomy.
CHARLES.
But I must yet ask you, Sir, how can the sun, which you say is about ninety-five millions of miles from us, give us so much warmth and light?
DR. BARTLETT.
That is truly a great miracle of almighty Power.
WILLIAM.
I am glad I know that the sun is so large. Many think it is not larger than it appears to us.