270 REPORT 4, UNITED STATES ENTOMOLOGICAL COMMISSION. 



has tbe bracket in the form of a kneed leg, bearing a flat foot-piece at 

 the side of the bucket and upon the ground. Under the patent, No. 

 209513, October 29, 1878, of Mr. A.B. Prouty, the National Manufactur- 

 ing Company makes this pump having the leg sloping and nearly straight 

 as it extends from afoot-plate upon the ground to the upper cap of the cyl- 

 inder, where it is hinged fast so that it can be folded parallel against 

 the cylinder. The discharge spout has a handle formed upon its base 

 and bears a peculiar terminal nozzle that hangs when out of use upon a 

 hook, while the upper cap of the cylinder has a projecting ring by 

 which the whole device may be hung. In this form the foot piece will 

 hold the pump stable in a deeper vessel, and it may be thus held in- 

 serted in the side bung of a barrel, in a tub, or large can. 



The most decided variation upon the ^'Aquapult " was introduced by 

 Mr. Johnson in his patent, No. 116599, of July 4, 1871. Its shape is 

 shown in Plate XL, Fig. 2, where li denotes the suction-hose j m the 

 handle, and tlie discharge is downward. It consists of an "Aqnapult" 

 having the suction entrance at its side, o, while the cylinder discharges 

 at its io\} into an ensheathing cylinder, fc, which discharges at the 

 lower end. In this form the pump subserve? the purposes of a liydro- 

 nette or syringe, and has also the advantage that the reciprocating 

 motion of the j)istou does not disturb the position of the nozzle, which 

 is held immovable with the cylinder. An extension pipe, Fig. 5, should 

 be added. 



Next should be noticed two styles of pump which are allied to the 

 " Aquapults" by both form and adaptability. The " Aquarius " and the 

 ^'AquajecP^ (Plate XL, Fig. 3) have external resemblance to each 

 other, but are different in operation and internal construction. The 

 "Aquarius" is manufactured by Messrs. W. & B. Douglas, of Middle- 

 town, Conn., seemingly under the patent. No. 33299, issued September 

 17, 1861, to Mr. B. Douglas. It is a strong pump, but is single-acting 

 and, although provided with an air-chamber upon the cylinder, the jet 

 thrown is of an intermittent character. The " Aquaject" as made by 

 Messrs. Kumsey & Co., of Seneca Falls, N. Y., throws a good, strong, 

 steady jet, being double-acting and also possessing an air-chamber. In 

 Fig. 3 the operator is Avorking the piston by his right baud and hold- 

 ing the cylinder by its foot-piece, the pump takes water by a suction- 

 hose leading from a bucket to enter the side of the base of the cylinder 

 while the water is discharged through a hose held in the left hand and 

 leading from the upper cylinder cap to which it is joined at a point be- 

 neath the globular air-chamber which surrounds the piston. Both of 

 the foregoing pumps are strong in action and durable in construction. 

 They cost from $8 to $10 each. The suction-hose can have greater 

 length and be inserted in a barrel or other larger reservoir upon a cart 

 or otherwise when desired, and the discharge hose may bear a spray 

 nozzle or be connected with the main of any system of branching pipes. 

 These and the '^ Aquapults^^3iTG very desirable for squirting upon trees 



