INTROmWTORY 



39 



Fig. 4. 



Fig. 5 



Of the spray nozzles in 

 use, the most practical is 

 a nozzle made by Wes- 

 ley Fanning, No. 279 St. 

 John Street, San Jose, 

 and is known as the " Mer- 

 rigot Nozzle." (Fig. 6.) A 

 is a diaphragm, with a small 

 opening in the center of any 

 required size. This is plac- 

 ed on the piece B, on top 

 of screw ; the cap C is then 

 screwed on, and the nozzle 

 is complete. 



\Yith a force pump this 

 throws a very fine spray 

 over the tree. 



A full set of diaphragms 

 are sent with each nozzle. 



Figs. 4 and 5 represents 

 the Niagara Lawn Sprink- 

 . ler. 



CHAPTER XII. 



DeLong's Moth-trap. 



The apple house (Fig. 7) at tlie Novato Ranch, in Marin 

 County, California, owned by Mr. DeLong, is a three story 

 building about one hundred feet long by seventy feet wide ; 

 the lower story is built of stone twelve feet high, the second 

 story of brick fourteen feet high, and the third or upper story 

 is in the form of a hip-roof, and is about twenty feet from the 

 floor to the ridgepole. 



