Definition of a Cow ------------------- A big city school boy describes a cow something like this : A cow is a completely automatic milk manufacturing machine. It is encased in untanned leather and mounted on four vertical, movable supports, one on each corner. The front end contains the cutting and grinding mechanism, as well as the headlights, air inlet and exhaust, a bumper and foghorn. At the rear is the dispensing apparatus and an automatic fly swatter. The central portion houses a hydrochemical conversion plant. This consists of four fermentation and storage tanks connected in series by an intricate network of flexible plumbing. This section also contains the heating plant complete with automatic temperature controls, pump- ing station and main ventilating system. The waste disposal apparatus is located at the rear of this central section. In brief, the externally visible features are: two lookers, two hookers, four stand-uppers, four hanger-downers and a swishy-wishy. There is a similar machine known as a bull, which shouldd not be confused with a cow. It produces no milk, but has other interesting uses.