The Canadian Horticulturist. 



223 



very fine spray ; but for large trees the McGowan nozzle is just the thing. The 

 fact is, that we in Canada are not up to the times in these spraying outfits, 

 and it is time some wide-awake manufacturer gave his attention to the spraying 

 outfits required. Many pedlars of spraying pumps are selling the old Boss 

 nozzle, which may do for washing wagons, but is too extravagant of the liquid 

 for orchard use. The writer has been using the Masson nozzle for two years 

 with much satisfaction, but the McGowan is still better. 



Fig. 671 represents a side view of a McGowan nozzle, and a cross section 

 of the piston, about three-quarters natural size. Across the top of tube w is the 

 cylinder u closed at the end on the right by a bevelled block. The orifice v is 

 closed by a sliding piston which is composed of one or two pieces. The cross 

 section of the piston shown in Fig. 671 represents the form having two parts, an 

 inner piston which can be screwed out, as represented by the dotted line e^ and 



Fig. 671. — McGowan Nozzle. 



an outer part or sleeve, c. By turning the button^ s^ the spray can be changed 

 instantly from a long distance spray suitable for orchards^ to a spray so fine that it 

 7vill float in the air like a mist. It can be adjusted as desired and will stay as 

 adjusted. The spring x is designed to hold the sliding valve in position except 

 when obstructions become lodged in the nozzle. As such obstructions prevent 

 the passage of any fluid which may be in use, the pressure upon the liquid in 

 the nozzle instantly increases. This forces the piston back from the outlet 

 orifice so the opening will admit the passage of any substance not larger than 

 I X v\ inches. When the obstruction is removed the spring forces the valve 

 back into position and the nozzle works again normally as desired. The tension 

 of the spring can be varied by moving the spring z up or down. 



i 



Tomato Cans, and other cans in which fruit and vegetables have been 

 canned, may be made of value by fruit and plant growers in which to pot off 

 young plants. Remove the paper from around the can and set the opened end 

 on coals of fire. The solder meltmg, the end drops off and leaves the can in 

 fine condition for use. ^^'ith a hatchet cut a few small holes in the bottom of 

 the can, and put in plenty of drainage of broken pots, charcoal, etc. If the 

 cans burst apart or explode, cut the hole in the end before heating. — Farm and 

 Home. 



