242 REPQRT 4, UNITED STATES ENTOMOLOGICAL COMMISSION. 
"The reservoir, A, is divided in the present instance by two longitudinal partitions, 
ii, which break up the contents of the reservoir and prevent them from accumulating 
in the lower portions of the same — openings jj, however, allowing such communication 
as will permit the entrance of sufficient material into the lower portion of the reser- 
voir to suprjly the place of that expelled at each blast of the bellows, thus insuring an 
even discharge of the whole contents of the reservoir. 
" In order to cause the air to act only on the portion contained in this lower division 
the nozzle has an inclined face, n, in which the perforations for the escape of the air 
are formed, the air being thus directed against the bottom of the. reservoir, and carry- 
ing with it a small quantity of the contents, which are expelled through the spout, a. 
A perforated disk, x, is inserted into the entrance of this spout to assist in distribut- 
ing the contents evenly." 
Mr. Thomas Woodason, of Chicago, 111., is manufacturing some small 
insect bellows having the construction of the common sanding bellows. 
In Plate XXXII, Fig. 3, is represented one of the best made by him. 
The powder is introduced into the double cone-shaped reservoir by a 
can-screw opening above. A valve prevents the powder from sucking 
into the bellows at its neck. The blast-pipe from the bellows projects 
Into and beyond the center of the reservoir, where its end is closed 
•completely. The air can only pass from this supply pipe in a lateral 
direction by a number of perforations. The feeding device has no ad- 
justability. The powder pours into the discharge-pipe if that be di- 
rected downward, and the feeding is affected by shaking and jolting, 
yet in its way, though at some mechanical disad vantage, it does very 
fair work as a distributer of poison. 
Mr. Woodason also makes a similar bellows with the common feeding 
device, shown in Plate XXXII, Fig. 2. The powder-box is a funnel with 
its top closed, while its outlet communicates into the blast-pipe. It 
feeds less regularly than the preceding one, especially when flour mix- 
tures are employed. 
Another interesting blower for broadcast powdering is that patented 
(No. 5G558) in' July, 18GG, by Mr. J. W. Hendley, of Washington, D. O. 
This machine is illustrated in Plate XXXII, Fig. 1. It was used as 
•early as twenty years ago for blowing powdered sulphur as an insecti- 
cide upon plants, but has sold in the trade chiefly as a u sanding bel- 
Hows." The bellows proper is of ordinary construction, but the spout 
and feeder are peculiar. The latter is a can which oscillates up and 
down on and with the upper or movable head of the bellows. A flexi- 
ble segment in the neck of the feeder allows the can to move independ- 
ently of the neck, which leads into the blast-spout at a point just beyond 
the bellows. Inside of this neck is a barbed rod having its upper end 
iixed in the can, so that the movements of the latter make the rod act 
as a plunger and rattler in the neck to push the powder along down to 
I he blast. Just proximal of the feed-entrance the blast-pipe has a short 
crook to help prevent the powder from getting back into the bellows, 
while distal from it there is a flexible segment with an adjustable clamp 
to set the discharge end at any angle desired. The exit end is broadly 
flattened, having a slot-like discharge orifice to spread the blast. 
