Al 
and 4 pints had been used, and found 2 days later that this additional 
water still increased the effect. 
In addition to this a number of plants were treated with this compound 
to note the results next spring. The holes were made 2 feet in diameter, 
and after the solution had disappeared the wet ground from the outside 
was placed around the plant and the hole closed again. The experi- 
ments were: Five pints of compound in 5 gallons of the solution, four 
plants; 4 pints of compound in 5 gallons of the solution, eight plants ; 
3 pints of compound in 5 gallons of the solution, ten plants; and 2 pints 
of compound in 5 gallons of the solution, ten plants. 
CompounD No. 3.—Caustie soda, 98 per cent, 1 pound ; resin, 8 pounds ; 
and water to make 10 gallons of compound, costing 22 cents. 
Compound, 4 pints; water, 74 gallons. Examined 6 days later; result 
good. 
Compound, 4 pints; water, 10 gallons. Examined 6 days later and 
found result favorable. 
Compound, 3 pints; water, 75 pints. Found only part of insects de- 
stroyed 6 days later. 
Compound, 3 pints; water, 90 pints. There were not enough insects 
upon this plant to deduce fair results, which would no doubt be very 
poor. 
Compound No. 4.—Sal soda, 3 pounds; resin, 4 pounds ; and water to 
make 5 gallons of compound ; costing 11 cents. 
Compound, 4 pints; water, 74 gallons. Examined 5 days later and 
found all insects killed except a few living on a plant under thick bark, 
where solution apparently did not penetrate. 
Compound, 4 pints; water, 10 gallons. Examined 5 days later and 
found insects dead to 12 inches in depth from original surface, with only 
occasionally a live one walking about. 
Compound, 3 pints; water, 75 pints. On examining, 5 days later, 
only the insects near surface were found dead. 
Compound, 4 pints; water, 15 gallons. This destroyed only partly 
the lice near the top. 
The following four experiments were made with this compound, the 
ground having been previously soaked with 4 gallons of water : 
Compound, 3 pints; water, 21 pints. Examined 12 days later. Did 
not show good results, as part of the insects were found alive. Twice 
the amount of water with the same quantity of compound will do much 
better work. 
Compound, 3 pints; water, 33 pints. Examined 12 days later and 
found results fairly good. Only a few living ones were running about. 
Compound, 2 pints; water, 30 pints. On examination numerous live 
insects were found, but more than half were killed. 
