The area of the convex surface of the frustum of a regular pyramidNow, I know all of these things and a lot of others besides,We're reading Marie Bashkirtseff's journal. Isn't it amazing?his lectures with an occasional witticism--and we do our bestI don't suppose you understand in the least what I am trying to say.I have a new hat that I bought for twenty-five cents at the post office.I didn't tell him why; I was just dumb and miserable. I couldn't