APPENDICES. 



ILLUSTRATIONS OF SPRAY PUMPS AND OTHER 

 MACHINES IN USE FOR THE DESTRUCTION OF 

 INSECTS. 



The object of including in Part III. of the Handbook illustrations now 

 in use either here, Europe, or America is that farmers, fruit-g-rowers, 

 vignerous and others may be able bj aid of figures and descriptions to 

 select for themselves such articles as appear best suited for their require- 

 ments ; and as our rural population is in some districts scattered and 

 so far from the great centres of population, I have thought it advisable 

 to furnish some particulars as to cost, &c., as also the names and ad- 

 dresses of firms from whom the machines may be obtained, taking them 

 in the order in which I have received the particulars from the owners 

 or their agents ; the author of each article or description being respon- 

 sible for the statements contained therein.. 



APPENDIX I. 



SPRAY PUMPS, ETC. 



The Doncaster Spray Pump. 



(See Fig. L) 



These pumps are made in three sizes, viz., H-in., 2-iu., and 

 2-in. double action. These sizes are the diameters of the solid gun- 

 metal plungers, of which material the pumps are constructed, and are 

 mounted on 50 and 80 gallon vats. They are fitted with large air 

 chambers, which enables them to keep up a powerful and continuous 

 spray. For the handle a balance lever is used weighted at one end. 

 They can be easily worked by a boy. The spray directors consist of 

 long tubes with wheel valves at the lower end, so that the spray can be 

 turned off instantaneously Avithout lowering the nozzle. The pumps 

 are fitted with the Davies Patent Agitator. The object of this 

 agitator is to provide a device which will effectually agitate the liquid 



