298 REPORT 4, UNITED STATES ENTOMOLOGICAL COMMISSION. 
latter also has a median splice, which may be separated to allow one of 
its halves to fold against the side of its other when the machine is to be 
made very narrow for hauling through gates, &e. For this purpose 
also the extension-arms at the sides and spliced to either of the ends of 
the diagonal bars, or the cross-bar may be turned forward to lie paral- 
lel to the diagonal pieces, and the barrel should be lowered. The rear 
tripod-legs close also, for they are joined to the frame by hinges. The 
wheels should not be set too close together, else the high tripod may tip 
over iu driving upon the row ridges or other obstacles. The shafts are 
hinged to arms upon the front leg, aud this with the wheel can turn 
easily at the top upon the pivot which is loose in the arch, but has a 
collar clamped tight to the frame. The front leg of the tripod has foot- 
pins by which to ascend to the pulley at the top. The windlass is of 
iron with a cylinder about 1J inches in diameter and a crank 18 inches 
long. This has a stop-button on the front tripod-leg, which also sup- 
ports the wiudlass. Two small two-wheeled pulleys are used with a 
rope three fourths of an inch thick. Its end is provided with a pair of 
barrel-hooks, which clutch the chimbs. A full-sized barrel of 'poisoned 
water is raised by ooe hand, but it is rather hard straining unless gears 
be added to give better leverage. A small half-barrel, wine or beer keg 
that will hold from 10 to 20 gallons is much preferable. With the bar- 
rel 10 to 12 feet high pressure enough to sprinkle ordinary cotton from 
beneath is secured, and with my cyclone nozzles it applies 10 to 15 gal- 
lons to the acre. The machine does not thus give as much pressure as 
would a force-pump, and hence the spray is much coarser. When de- 
sired, a small force-pump is secured to the frame and may be worked 
with one hand or a treadle, or a rachet lever playing upon the spokes or 
upon lugs attached to the fellies or rim of the wheel. If the barrel is not 
carried low upon the frame, the pump should be attached upside down. 
The arrangement of the pipes is on essentially tbe same plan as has 
already been described. The wheels being far apart and at the three 
angles of a triangular frame it conforms excellently to all undulations of 
the ground and has a broad base to support the barrel, which is situ- 
ated as within the apex of a pyramid. The frame can be made and 
put together easily. This machine, whether operated automatically or 
by a pump, is a practical device, and where wagon wheels are used it 
will not prove high priced. 
" The Schdnck tiprinMer. — This sprinkler, invented by Mr. Lafayette 
S. Schanck, of Marlborough, 1ST. J. (patent No. 2 15(383, May 20, 1809), 
consists of the barrel with a stirring apparatus and with two or more 
pipes connected with the bottom of the barrel, each having a finely- 
perforated nozzle. The whole apparatus is placed on a cart. 
" Tke Taylor Sprinkler. — The sprinkling apparatus of the Taylor 
dusting and sprinkling machine should be mentioned in this conned* 
tion. Plate LVI, Fig. 4, gives a representation of this machine, but 
with the. dusting arrangement detached. Leaving out those parts that 
