Listen to what I've learned to-day.

The area of the convex surface of the frustum of a regular pyramid
is half the product of the sum of the perimeters of its bases
by the altitude of either of its trapezoids.

It doesn't sound true, but it is--I can prove it!

You've never heard about my clothes, have you, Daddy? Six dresses,
all new and beautiful and bought for me--not handed down from
somebody bigger. Perhaps you don't realize what a climax that marks
in the career of an orphan? You gave them to me, and I am very, very,
VERY much obliged. It's a fine thing to be educated--but nothing
compared to the dizzying experience of owning six new dresses.
Miss Pritchard, who is on the visiting committee, picked them out--
not Mrs. Lippett, thank goodness. I have an evening dress, pink mull
over silk (I'm perfectly beautiful in that), and a blue church dress,
and a dinner dress of red veiling with Oriental trimming (makes
me look like a Gipsy), and another of rose-coloured challis,
and a grey street suit, and an every-day dress for classes.
That wouldn't be an awfully big wardrobe for Julia Rutledge Pendleton,
perhaps, but for Jerusha Abbott--Oh, my!

I suppose you're thinking now what a frivolous, shallow little
beast she is, and what a waste of money to educate a girl?

But, Daddy, if you'd been dressed in checked ginghams all your life,
you'd appreciate how I feel. And when I started to the high school,
I entered upon another period even worse than the checked ginghams.