This name is applied to many contrivances for supplying water to plants.

1. The pump-syringe, or syringe-engine, (Fig. 37), can be supplied with water from a common bucket, from which it sucks the water through a perforated base. The handle is sometimes made to work like that of the common pump.

Fig. 37.

2. The barrow watering-engine (Fig. 38) is represented in the figure below. It will throw the jet of water to a distance of forty or fifty feet, or somewhat less if a rose is upon the end of the delivery-pipe. It holds from twenty to thirty gallons of water; but may be made, with a leather-hose attached, to communicate with a pond or other reservoir of water.

Fig. 38.

3. The curved barrel-engine (Fig. 39) is excellent; for the barrel, piston-rods, etc, being so constructed as to be turned on a lathe, they are so accurate that there is the least possible loss of power, either from unnecessary friction or from an imperfect vacuum.

Fig. 39.

Another garden engine of still greater power, is illustrated by the annexed drawing (Fig. 40); it is somewhat more costly than those in general use, but may be used for a variety of purposes, and in some cases might be used to protect property from fire. They are of various patterns and power. Some of them, worked by a single arm, cast the water fifty to sixty feet high.

Fig. 40.