Indian Blnsenm Notes. 



[ Yoi. n. 



holding about 400 pounds each. That in the cans is much to be preferred, since the 

 quantity in each is so small that it will soon be used up after the can is opened ; 

 whereas the barrel containing so large a quantity, the cyanide used towards the last 

 will have lost much of its strength by contact with the air. It is customary to 

 ■weigh out the cyanide in small paper parcels and mark each parcel w th the number 

 of ounces of cyanide that it contains ; then when the tree is to fumigated it is an 

 easy matter for the operator to select one of the parcels containing a sufficient 

 quantity of the cyanide for the tree, thus saving the trouble of weighing out the 

 cyanide as it is to be used for each tree. As the fumigating is done only at night 

 the weighing of the cyanide is frequently done by the ladies of the house upon the day 

 preceding its use. 



*■ The quantity of cyanide to be used on each tree will, of course, depend not only 

 on the size of the tree but also on the strength of the cyanide used. The following 

 table will aid in determining the proper quantity of each ingredient to be used on 

 different sized citrus trees, tlie cyanide being about 58 per cent, pure : — 



Height of Tree. 



Diameter of Tree- 

 top. 



Water, 



Sulphuric Acid. 



Potsasium 



Cyanide. 



Feet. 



Feet. 



Fluid ozs. 



Fluid ozs. 



Ounces. 



6 



4 



2 

 3 



1 



3 



1 



3 



8 



6 



2 



1 



1 



10 



8 



^ 



n 



2} 



32 



10 



8 



4 



4 



12 



14 



16 



8 



8 



14 



10 



10 



5 



5 



14 



14 



19 



9i 



91 



16 



12 



16 



8 



8 



16 



16 



29 



141 



14| 



18 



14 



26 



13 



13 



20 



16 



36 



18 



18 



22 



18 



52 



26 



26 



24 



20 



66 



33 



33" 



