ClipArt ETC
Pictured are the conical (left) and ovoid (right) forms of the apple. These are the typical forms of the American apple.

Conical and Ovoid Forms of Apple

Pictured are the conical (left) and ovoid (right) forms of the apple. These are the typical forms of…

"It consists of a common metallic syringe, A, screwed to a cylindrical valve box, B, which contains two ovoid cavities, in each of which there is a loose, spherical metallic valve. The ends of the cavities are peirced, and the valves fit exactly, either of the orifices. Thus it makes no difference which end of the valve-box is upturned, the valve falling down and closing the orifices in either direction. The flexible india rubber tubes, C D, are attached to the opposite ends of the cavities." —Comstock, 1850

Stomach Pump

"It consists of a common metallic syringe, A, screwed to a cylindrical valve box, B, which contains…