TABLE OF CONTENTS. 
Page. 
Letter of Submittal .~ vn 
Preface 1 
Introduction 5 
Literature of forest entomology, 5 — Insects in general, 6 — The beetles and 
borers, 7— Moths and butterflies, 7 — Gall-flies, 10 — Saw-flies, 12 — Plant- 
lice, 13— Bark-lice, 14— Dipterous or two-winged gall-flies, 14 — Insec- 
tivorous or parasitic insects, 14 — Artificial breeding of parasitic and 
predaceous insects, 16 — Coleopterous enemies of borers, 18 — Influence 
of temperature on insect life, 19 — Generations or broods, 19 — Hiberna- 
tion stage, 23 — Diseases of trees produced by the attacks of insects, 24 — 
The appearance of unusual new growths, 24 — The origin of repaired 
parts from representative indefinite growths is very general, 25— Pre- 
vention and remedies against forest insects, 27 — Borers in shade and 
ornamental trees, 27 — Prevention and remedies against timber-beetles 
and bark-borers, 28 — Insecticides and means of applying them to shade 
and forest trees, 31 — Paris green and London purple, 31— Insecticides 
which act by contact, 34— Wood ashes and lime, 34 — Coal ashes and 
coal dust, 35 — Pyrethrum, hellebore, sulphur, 35— Alkaline washes, 
potash lye and soda lye, 35 — Alkaline washes, soaps, 35 — Petroleum pro- 
ducts, kerosene, naphtha, 36 — Kerosene emulsions, 36 — Resin washes, 
37 — Fumigants, gases, 37 — Hydrocyanic acid gas, 38— Insecticide ap- 
paratus, 38— Devices for applying powders, powder blowers, 38— The 
Woodason bellows, 39 — The Leggett Brothers orchard gun, 39— De- 
vices for applying liquids, 39— The pump, 39 — Hose and bamboo ex- 
tension rod, 42— Nozzles ; the Riley or Cyclone nozzle, 44 — The Nixon 
or Climax nozzle, 46. 
Chapter I. 
Imect8 injurious to the oak 48 
Affecting the roots, 49 — Affecting the trunk, 53 — Affecting the limbs and 
twigs, 83— Feeding on the buds, 116— Injuring the leaves, 117 — Injuring 
the seeds (acorns), 215 — Insects either habitually or occasionally oc- 
curring on the oak, 217. 
Chapter II. 
Instcts injurious to the elm 224 
Affecting the trunk, 224 — Affecting the leaves, 230 — Insects occasionally 
preying upon the elm, 282. - 
Chapter III. 
Insects injurious to the hickory 285 
Injuring the trunk and branches, 285— Affecting the bark, 298 — Affecting 
the leaves, 299— Affecting the fruit, 326 —Other species occurring on the 
hickory, 328. 
Insects injurious to the black walnut 329 
Affecting the trunk, 329— Othet species occurring on the black walnut, 336. 
129354 
