350 Report of the Horticultural Department of the 



" Class V. — Nozzles in which the Hquid escapes in the form of 

 two converging streams the force of which, acting upon each other 

 at the point of contact, breaks tlie liquid into a spray. This spray 

 is fan-shaped and lies in a plar.e at right angles to the plane of the 

 two converging streams. To this class belong Excelsior, Calla and 

 McGowen. 



" The classes II and III blend together so that some nozzles may 

 be placed in one of the other according to the judgment of the person 

 making the classification. Most of the variable spray nozzles fall 

 into different classes as the adjustment is changed." 



Among recent introductions not mentioned by Professor Booth 

 are: 



Brown's Universal Vermorel., Classes I and IV. 



Field Force Pump Co's. Dewey, Class IV. 



Spramotor, Class IV. 



Goulds' Mistry and Large Mistry, Class IV. 



Illustrations of the different classes are shown in Figs. 4 to 13, 

 as follows : 



Class I. Deming's Bordeaux, Fig. 4; Calla, Fig. 5, Lewis, Paten,t, 

 Fig. 6. 



Class II. Deming's Bordeaux, Fig. 4. 



Class III. Lewis' Patent, Fig. 6. 



Class IV. Vermorels, Dewey, Cyclones, Figs. 7 to 13. 



Class V. Calla, Fig. 5. 



Clogging and dribbling. — Many nozzles, including all Vermorels, 

 have devices for clearing the opening when clogged. Professor 

 Booth finds that experimental tests and field experience unite in 

 showing that none of the common spraying nozzles will clog when 

 used with any of the common spraying mixtures " if these be care- 

 fully prepared and the spraying vessels and pump be kept clean by 

 washing out after being used. Lint and thread may clog any nozzle 

 and every precaution should be taken to keep these out of the liquid. 

 Sometimes, owing to poorly burned lime or some other unpreventable 

 cause, a nozzle will clog badly. Lender these circumstances it is a 

 great convenience if it can be readily cleaned." 



