164 Eefort of the Botanist of the 



parts worked perfectly. When many stops had to be made con- 

 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 bo 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. 



li'or 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, 3|x4^ in. We would also recommend the use of 2^x4^ 

 in. side-plates instead of 4x4^ in. plates. These would support 

 the weight of tank as well as the 4x4^ inch plates and reduce 

 the weight of the truck as a whole. 



The advice of the ^Vheel 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 



