Guessed the conundrum the first time.

Go up to the head of the class! Now, the "patented self-rockers," no doubt, have their proper use; but go up with me into the garret of your old homestead, and exhume the cradle that you, a good while ago, slept in.

The rockers are somewhat rough, as though a farmer's plane had fashioned them, and the sides just high enough for a child to learn to walk by.

What a homely thing, take it all in all! You say: Stop your depreciation! We were all rocked in that.

For about fifteen years that cradle was going much of the time.