22 



largely found upon the first trees sprayed, while the remaiuiug con- 

 tents of the barrel grew constantly weaker. This came about for 

 want of a satisfactory provision for keeping the mixture thoi-oughly 

 stirred. The same effect must be produced in the use of Paris green 

 but would not be visible. 



To overcome these obstacles I have devised a plain, brass syringe 

 of the following description. The barrel is fifteen inches long and 

 the piston has a stroke of fourteen ; the diameter is one and three- 

 fourths inches, and it will hold somewhat more than a pint. The 

 rose or nozzle is pierced with ninety-nine holes having a direction 

 radiating from a point in the rear, the effect being to throw a spray 

 twenty or more feet with a spread of six feet. The holes are of such 

 a size that the spray is as fine as is compatible with the distance 

 mentioned. My thanks are due to the well-known firm of R. T. 

 Deakin & Co., Twelfth and Buttonwood Sts., Philadelphia, for the 

 satisfactory way in which they have seconded my plans in the con- 

 struction of this instrument, and at my solicitation they have under- 

 taken to supply a demand for it. It is to be known as the "Hydro- 

 spray," and the retail price will be $5.00. If not obtainable at the 

 usual places where such goods are sold it may be ordered direct from 

 the firm. A cyclone nozzle for the same will be furnished for 

 seventy-five cents extra, which will be found very useful under glass 

 or in the' garden for the perfect and economical application of fungi- 

 cides and insecticides. It might be supposed that so simple an affair 

 as the Hydrosprayer would be of little use to an extensive grower 

 and in large orchards, but I found in actual trials that the same 

 number of hands required to run a force pump could spray fully as 

 much water or territory in a given time by them, and that in the 

 quality and efficiency of the work they were far superior. Armed 

 with one or more of these Hydrosprayers, a few pounds of sulphate 

 of copper, and the same of Paris green, a fruit grower is prepared 

 to meet most of the enemies that threaten him. For vineyard work 

 and in the potato field a knapsack sprayer will be found very con- 

 venient on account of the easy transportation of the liquid, 'but the 

 same objection applies to this as the large force pump, so that it is 

 not well adapted to the use of Paris green or Bordeaux mixture. 



To sum up the lessons of the season, as I recall them now, I will 

 indicate the course which I propose to follow in the coming year. 

 The first day in the spring when things', are suflJiciently dry, I shall 

 gather all the stubble, weeds, grassland debris and burn it. This 



