164 REPORT OF THE BOTANIST OF THE 
parts worked perfectly. When many stops had to be made éon- 
siderabe material was wasted as it was impossible to hold the 
liquid already in the arms and supply pipe. ; 
As a whole, the machine exceeded our expectations, and in 
fact met all the requirements of an ideal sprayer. In building 
another the only changes that would be made would be in size 
and weight of some of the materials used. 
Finally, it is not advised that any one grower should go to the 
expense of building such a machine to spray five or six acres of 
asparagus. The grower of 15 acres or over could well afford to 
do this. A better way would be for several growers of aspara- 
gus to combine in building such a machine; or, one person could 
build such a machine and do spraying for his neighbors as a 
_ business, the same as threshing is done. It is believed that a 
similar machine can be built for less than $200.00. 
RECOMMENDATIONS. 
For those who may wish to construct a similar machine, the 
following suggestions and recommendations are given: Possibly 
by the use of T iron for making the arches their weight could 
be reduced. We found that the cross-plates on forward truck 
were too light, being 2x3 in., and would recommend that the 
two cross-plates be made of same sized timbers as the arch-plate, 
namely, 34x44 in. We would also recommend the use of 25x4$ 
in. side-plates instead of 4x4} in. plates. These would support 
the weight of tank as well as the 4x43 inch plates and reduce 
the weight of the truck as a whole. 
The advice of the Wheel Company was taken and heavy 
thresher wheels used on rear axle. These were heavier than 
needed. The ordinary weight of wheels, such as furnished by 
the company for farm wagons, would have answered the purpose 
as well. | 
The advice of the Link-Belt Company was also taken regard- 
ing shafting; as a result a shaft one and fifteen-sixteenths inches — 
