APPENDIX I. 175 



maintained in a thorough state of agitation, with the result that all the 

 ingredients are held in suspension in the mixture, and pass out through 

 the spray nozzles thoroughly mixed. 



The action of our new agitator is as follows : — There always being 

 at least one or more of the blades in the liquid, the pump lever when 

 in operation causes the said blades to rotate on the stud arm. There 

 are thus formed in the vat a back-wash and a by-wash, which effectu- 

 ally cause all the ingredients to be assimilated. 



The agitators can be placed anywhere on the suction pipe simply by 

 adjusting a set screw. The blades can be either corrugated or plain; 

 and also can be set at any angle required. 



Price: 12s. 6d. 



John Davies and Co., 235 Franklin-street, Melbourne. 



The Danks " Chee " Pest Sprat Pump. 

 (^See Fig. 6.) 



This is a registered design spray pump, admirably adapted for small 

 orchards and gardens. The cylinder is brass, and it has gmi-metal check 

 valve, brass air chamber, and iron foot stirrup. It is fitted with 4 feet 

 of suction hose and brass strainer, along with 3 feet of delivery hose, 

 director, and single spray. It is capable of working four sprays con- 

 tinuously, and without doubt is the best small spray pump yet intro- 

 duced. 



Price : £1 12s. 6d. 

 . John Danks and Son Proprietary Limited, 391 Bourke-street. 



The Danks Improved Acme Spray Pomp. 

 {See Fig. 7.) 



This engraving represents the Danks Acme Spray Pump, to which we 

 have given a great deal of attention. This sprayer is suitablefor medium- 

 sized orchards and vineyards ; the carriage is strongly made and the 

 cask is firmly fixed to it and well placed, the wheels are of large 

 diameter, and the flanges are wide so as to travel easily over soft or 

 friable soils. The pump, which is made of gun metal, with valves of 

 the same material, is on the semi-rotary principle, it is fitted with an 

 air chamber of good capacity, and is capable of supplying a steady and 

 continxious spray through two treble sprays. This spray pump is fitted 

 with two lo-ft. lengths of hose of good quality. The disturbing 

 arrangement, which is the outcome of many experiments, is simply per- 

 fect. The movement, the action of which is shown in the accompanying 

 sectional engraving, is gained from an extension of the pump spindle, 

 to which is connected the cross arms ; a rod hangs from the extremity 



