32 
on a pear tree at 12:50 p. m., November 26, sun shining, light breeze. 
This did not kill all of the green leaves that were upon the tree. Jan- 
uary 15 I found a great many living San José scales on this tree. 
Experiment 228: Salt, 38 pounds; water, 100 gallons. Dissolved the 
salt in water as before and sprayed on a pear tree at noon, November 26, 
sun shining, light breeze. This killed all of the green leaves that were 
upon the tree. January 15, I found many living San José scales on this 
tree. 
Experiment 257: Salt, 60 pounds; water, 100 gallons. Dissolved the 
salt as before and sprayed on a pear tree at 10 a. m., January 20, sun 
shining, light breeze. April 23, I found a great many living San José 
scales on this tree. 
SALT AND LiME.—Experiment 238: Salt, 25 pounds; slaked lime, 
84 pounds; water, 100 gallons. The salt and lime were added to the 
cold water, stirred occasionally, and strained through a piece of Swiss 
muslin and then sprayed upon a pear tree at 10:30 a. m., January 30, 
sun shining, light breeze. April 23 I found a great many living San 
José scales on this tree. 
SALT AND SULPHUR.—Experiment 232: Salt, 25 pounds; sulphur, 
75 pounds; water, enough to make 100 gallons. The sulphur was boiled 
for an hour in 75 gallons of water, after which the salt was added, and 
the solution diluted with a sufficient quantity of cold water to make 100 
gallons. After standing for a few minutes the greater portion of the 
sulphur settled to the bottom, making it necessary to stir the solution 
almost constantly while applying it to the tree. Sprayed on a pear tree 
at 2:45 p. m., November 26, sun shining, light breeze; this killed all of 
the green leaves on the tree. January 15 I found a great many living 
San José scales on this tree. 
SuLPHUR.—Experiment 233: Sulphur, 100 pounds; water, enough to 
make 100 gallons. Placed the sulphur in the water and boiled for 1 
hour, then when cold, sprayed the solution on a pear tree at 3 p.m. 
November 26, sun shining, light breeze. This did not injure any of the 
green leaves that were on the tree. January 15 I found a great many 
living San José scales on this tree, a smaller proportion being killed 
than in either of the preceding experiments. 
LimE.—Experiment 239: Slaked lime, 10 pounds; water, enough 
to make 100 gallons. The lime was placed in the water, stirred occa- 
sionally and in two hours the solution was strained through a piece of 
thin Swiss muslin and sprayed upon a pear tree at 10:45 a. m. January 
20, sun shining, light breeze. April 23, I found a great many living 
San José scales on this tree. 
LIME AND SULPHUR.—Experiment 240: Quicklime (CaO), 100 
pounds; sulphur, 334 pounds; water, enough to make 100 gallons. 
Placed the lime and sulphur ina copper vessel, added 30 gallons of 
water, and boiled for two hours, then filtered. The solution was of a deep 
orange-red color. After standing for a few minutes needle-like crystals 
