EXPERIMENT STATION BULLETINS. 333 



Concentrated Lime Sulphur Solution Diluted to Spray for San 



Jose Scale. 



If Banmd test is 33° dilute 6-14 gallons to 50 gallons. 



If Baum6 test is 32° dilute 6-1/0 gallons to 50 gallons. 



If Baum^ test is 31° dilute 6% gallons to 50 gallons. 



If Baum^ test is 30° dilute 7 gallons to 50 gallons. 



If Baum^ test is 29° dilute 7-% gallons to 50 gallons. 



If Baum^ test is 28° dilute 7-34 gallons to 50 gallons. 



If Baum^ test is 27° dilute 8-i^ gallons to 50 gallons. 



If Baumd test is 26° dilute 8-% gallons to 50 gallons. 



If Baum6 test is 25° dilute 9 gallons to 50 gallons. 



If Baum^ test is 24° dilute Q-Yz gallons to 50 gallons. 



If Baume test is 23° dilute d-% gallons to 50 gallons. 



If Baumd test is 22° dilute 10 gallons to 50 gallons. 



If Baum6 test is 21° dilute IO-V2 gallons to 50 gallons. 



If Baum^ test is 20° dilute 10-% gallons to 50 gallons. 



If Baum6 test is 19° dilute 11-1/4 gallons to 50 gallons. 



If Baum^ test is 18° dilute ll-l^ gallons to 50 gallons. 



If Baum^ test is 17° dilute 12 gallons to 50 gallons. 



THE BAUME HYDROMETER. 



The hydrometer is an instrument used to determine the weight and 

 density of liquids. It is made of glass, is about one foot long, with a 

 graduated scale on the side. It can be purchased from wholesale dealers 

 in druggists' supplies, from Bausch & Lomb Optical Co., of Rochester, N. 

 Y., or Whitall Tatum Co., Philadelphia, Pa. Directions for use should 

 come with the instrument. 



COMMERCIAL CONCENTRATED LIME-SULPHUR WASH. 



There are several brands of commercial, concentrated preparations of 

 lime-sulphur wash on the market. They are now reasonable in price and 

 when a limited amount of spraying is to be done it may be desirable to 

 purchase one rather than to go to the trouble of preparing a small quan- 

 ty at home. 



HELLEBORE. 



White hellebore is the powdered root of a plant. It kills both by 

 contact and as an internal poison. It may be applied either dry or in 

 the form of a liquid. When used dry it should be mixed with three or 

 four times its weight of flour or of plaster and then dusted on the in- 

 sects. Applied wet, one pound should be mixed with twenty-five gallons 

 of water and this liquid applied as a spray. 



INSECT POWDER^ BUHACH, PYRETHRUM. 



This valuable remedy has one drawback, its cost. It is too expensive 

 for use on a large scale. It kills insects through their breathing pores, 



