Plate 1, fig. 
FNMA OE & bo Ss) US) 
Eee EDiebo beep) Ebetb) Ebetepeteb ft 
0e 9S ag 3G 0G ag DO OO AQ 04 AQ 
Bh Se se ae 
bb rb Eb ep 
g@ 9g 5Q 3 
—_ 
SaSRPRaAEPRRPEAS 
Sb cb ch Sb > > op > ob ob ob oD ob 
JQ o@ 9Q 9G 92 JQ GQ 98 gq OQ 08 09 OR 
EXPLANATION OF PLATES. 
10.—Jars, etc., in which spores are produced on a large scale ; 
round tin boxes in which spores were mailed. 
. 11.—Large and small sterilizers. 
. 18.—Cabbage worms killed by bacterial disease. 
. 8.—Plate cultures of two different ages. 
. 12.—Dead grasshoppers covered with mycelium. 
. 13.—Bag-worm killed by and covered with mycelium. 
. 29.—T wo hopperdozers tied together. 
. 30.—Single hopperdozer at work. 
. 36.—Colorado potato-beetles and two species of blister-beetles. 
. 45.—Currant-borer. 
. 51.—Unknown borer. 
. 37.—Stages of Imported Cabbage-butterfly, Cabbage Zebra- 
caterpillar, Cabbage Plutella and its parasites. 
. 38.—Stages of Native Cabbage-butterfly and Cabbage Plusia. 
. 42 —Currant leaf-lice. 
. 47.—Work of Plum-tree borer. 
. 68.—Cockscomb-gall on elm. 
. 52.—Box-elder Leaf-folder and its parasites. 
. 53.—Trees more or less infested with Box-elder Leaf-folder. 
. 54.—Stages of Sweet-corn moth and Rosin-weed moth. 
. 76.—Adults of six species of common cut-worms. 
. 00.— Parsley butterfly. 
. 68.—Elm-tree White-scale. 
. 69.—Eccentric scale of the elm. 
. 51.—Stages of Box-elder bug. 
. 58.—Stages of Bean-fly. 
. 62.—Winter eggs of leaf-lice on plum twig. 
. 599.—American Meromyza, its work, and parasite. 
. 66.—Willow or Cottonwood-scale. 
. 65.—Cottony Maple-scale. 
. 67.—White-scale of Cactus. 
16, fig. 
28.—Egg-masses of Pellucid locust. 
