Spraying Devices and Machinery. 195 



still upon the market in an improved form. In 1895 the Dem- 

 ing M'f 'g Co., Salem, O., first made the " Monarch," a powerful 

 machine, which is also suitable for vineyard work. 



The first successful use of steam power for spraying was 

 made, so far as I have been able to learn, by Stephen Hoyt, 

 Xew Canaan, Conn. The outfit (Figs. 15 and 16) was first 

 operated in 1894, and the following year it was again used with 

 most satisfactory results. 1 Large shade trees were sprayed 

 thoroughly and rapidly by the outfit. Mr. Hoyt writes me as 

 follows regarding its operation : 



FIG. 16. Tank, boiler, and pump of the outfit shown in Fig. 15. 



" The machine is made to throw four streams, two of which 

 are to work at the same time ; two men are to go up the trees 

 to the crotch and spray, while the other two are either preparing 

 to go up the next or are coming down from the two which they 

 have sprayed. The hose is fixed so as to shut any one of them 

 off at any time, and so when two of the men are through spray- 

 ing, the other two can start or keep on as they choose. 



" The two streams in the picture have a water pressure of from 

 125 to 150 pounds per square inch, and with a steam pressure 



i Connecticut Agric. Exp. Sta. 1895, July, Bull. 121, 4. 



