EUROPEAN FRUIT LECANIUM AND PEAR SCALE. 153 



A perfect emulsion was not formed, as some of the oil came to the 

 top. 



Plat 5b, 10 per cent distillate-oil emulsion. — This was made as 



follows : 



Boiling water gallons. . 5 



Fish-oil soap pounds. . 1^ 



Distillate (28° Baume) gallons. . 5 



Water (40 gallons) was added to make 50 gallons of the mixture. 

 The emulsion was imperfect. 



Plat 6, creosote-oil emulsion. — This is a commercial preparation and 

 recommended to be used at the rate of 1 part to 20 parts of water, 

 but was used 3 parts to 20 of water. 



Plat 7a, home-made 10 per cent creosote-oil emulsion. — The following 

 formula was used : 



Boiling water gallons. . 5 



Fish-oil soap pounds. . 2 



Caustic soda do 2 



Creosote oil gallons. . 5 



The caustic soda, soap, and oil were added in turn after the water 

 started to boil, and the mixture was forced through the pump to 

 emulsify it. Water (40 gallons) was then added to make 50 gallons 

 of wash. 



Plat 7b, 5 per cent creosote-oil emulsion. — This was made in the 

 same manner as for plat 7a, except that 100 gallons of spray were 

 made. 



Plat 8, commercial carbolic emulsion (distillate). — The following 

 formula was used : 



Emulsion gallons. . 5 



Water do 40 



Plat 9, 10 per cent crude-oil emulsion. — This was made with the 

 ingredients proportioned as follows: 



Boiling water gallons. . 5 



Caustic soda pound.. £ 



Fish-oil soap pounds. . 4 



Crude oil (12° to 14° Baume) gallons. . 5 



The caustic soda, soap, and oil were added to the water, in turn, as 

 soon as it had started to boil. The mixture was then forced through 

 the pump twice to emulsify it. Water (40 gallons) to make 50 gal- 

 lons of wash was then added. The emulsion was not perfect, as some 

 free oil came to the top. 



Plat 10, caustic soda. — The following formula was used: 



Water gallons. . 50 



Caustic soda „ pounds. . 4 



