278 REPORT 4, UNITED STATES ENTOMOLOGICAL COMMISSION. 
claimed us new by the inventor. The sprinklers or nozzles are not further described, 
but it is to be understood that the spray is produced in the same way as described in 
this class of spriuklers." 
Mr. Yeager's nozzle was patented September 2, 1879, and has been 
described on p. — . This and the more recent form of Mr. Yeager's ap- 
paratus is further illustrated in Plate XL1II, Fig. 1. The pump is 
represented as inserted in the side-bung of a barrel. The lever is indi- 
cated by /, its fulcrum by i, and the piston by p, while J is the over- 
flow-pipe leading back to the barrel, inside of which is seen the cylinder, 
having a T-shaped suction-strainer below, and a ridge-like discharge- 
passage, leading to the spout, e 1 , which bears the nozzle, n, from which 
the spray, s y is ejected. The method of removing clogging matters 
from the nozzle chamber is also depicted; one of its screw-caps being 
removed the finger is used to wipe out the interior. 
The Pinter spray-pump is that patented in Ko. 233431, October 19, 
1880, by Mr. F. T. Pinter, of Schulenburg, Fayette County, Texas, as 
shown in Plate XLIII, Figs. 2 and 3. It will be seen that the ar- 
rangement of the pump and barrel is essentially the same as has been 
noticed above. The parts have the same letters and explanation as 
given for Mr. Yeager's pump ; but in Mr. Pinter's device the piston is 
worked by motion communicated to it through the draft-wheel crank 1, 
pitman-bar 2, cranked and pinioned mandrels,/, cranked pinions, /i6, 
find second pitman, p. This particular mechanism for transmission of 
motion, as shown, is not the most practical that can be devised for the 
purpose. The nozzle, Fig. 3, is a segmental half-funnel, with a block, r, 
clamped inside, so as to leave only a semicircular, slot-shaped passage 
by which the liquid is spread into a spray. Its sectional side is shown 
at while r designates the block in its interior. Such an apparatus 
may be used with some success, and it may be passed without further 
criticism until its actual working in the held can be reported upon. 
[Single-acting, discharging from above the Piston.] 
Small vessel-pumps, having the discharge from above the piston, were 
patented by Mr. W. L. Ohipley, of Lamonte, Mo., in IS r o. 251523, Decern 
ber 27, 1881, and by Mr. A. J. Weith, of Chicago, 111., in No. 258962, 
June 0, 1882. They are probably not better than the average of the 
pumps here noticed, but specimens of them are desired to be tested. 
Upon tanks or barrels of liquid such pumps as the following, which 
are now extensively for sale by the trade, may be used. They are mostly 
designed as cistern-pumps, or small well-pumps, and most of them 
might; with very careful cleaning, be employed for lifting water during 
those parts of the year when they are not in use for poisoning. Only 
:t few examples can be noticed here. 
Available cittern or well pumps. — Pumps of the same general pattern 
as that shown in Plate XLV, Fig. 2, are manufactured by Messrs. Rum- 
Bey & (Jo., of Seneca Palls, N. Y., and by Messrs. W. & B. Douglas, of 
Middletown, Conn. They are good cistern- pumps and may be used on 
