My dear Mr. Hale: The beautiful shells came last night.
The shells and kernels are then separated in a winnowing machine.
For a long time these shells or hulls, as they are called, were burned at oil mills for fuel, 22 tons being held equal to a cord of wood, and 43 tons to a ton of coal.
I buy my pecans from someone who picks and shells them himself.
It was used in windows, though by no means exclusively, mica, alabaster and shells having been also employed.