DOSAGE SCHEDULE. 



65 



could be used at that time of the year without injury to the young 

 fruit, the writer prepared a schedule based upon tliis data. 



According to this schedule, trees 41 feet in circumference b}^ 28 

 feet over the top, from ground to ground, receive 1 ounce of cyanid 

 for each 100 cubic feet of inclosed space. This proportion is increased 

 on smaller trees, while on trees which are larger it is decreased to offset 

 the proportionately smaller leakage (pp. 43-44, 47-48). In preparing 

 the schedule the writer began with a tree 41 feet in circumference by 

 28 feet over the top. The cubic contents of this tree were determined 



Fig. 28. — Dosage schedule No. 1. (Original.) 



and a dosage calculated which would give it 1 ounce to each 100 

 cubic feet. Trees of other dimensions, both larger and smaller, were 

 then considered and their contents determined. In working out the 

 dosage for these trees not only were the cubic contents taken into 

 consideration, but also the rate of leakage as compared with that of 

 the tree 41 by 28 feet. Trees which were smaller than this first tree 

 would have a greater proportionate leakage rate, while the larger 

 ones would have less. In securing the dosage for various trees, 

 those smaller than 41 by 28 feet were given sufficient cyanid in 

 excess of 1 ounce per 100 cubic feet to offset the increased leakage, 

 77488— Bui. 79—09 5 



