xii ILLUSTRATIONS 



41. Labels, Showing Species and Locality 30 



42. Spreading Board 30 



43. Microscopic Insects Mounted on Pith Blocks 30 



44. Microscopic Insect Mounted on Cardboard Point 31 



45. A Punch for Making Points 31 



46. Forceps for Pinning Insects 31 



47. Heavy Pinning Forceps 31 



48. Glass Slide with Labels 32 



49. Watchmaker's Glass 32 



50. Hand Lens 32 



51. Stand for Bottles 33 



52. A Comstock Bottle 33 



53. Home-made Apparatus for Inflating Larvae 34 



54. A More Expensive Apparatus for Inflating Larva) 34 



55. An Inflated Larva 34 



56. Simple Form of Breeding Cage 35 



57. Home-made Breeding Jar 35 



58. Corn Growing Between Two Glass Plates 35 



59. Moist Chamber for Relaxing Dried Specimens 35 



60. A Schmidt Insect Box 36 



61. A Naphthaline Cone 37 



62. Mailing Box for Vials 37 



63. Showing Method of Making Envelopes for Butterflies 38 



64. A Card Index and Container 38 



65. Good Paris Green Under Microscope 41 



66. Poor Paris Green Under Microscope 41 



67. A Hand Dust Sprayer at Work 47 



68. A Large Dust Sprayer 48 



69. A Lantern Trap 49 



70. Working Against Grasshoppers with a "Hopperdozer" 50 



71. Removing Dead Grasshoppers from the " Hopperdozer " 51 



72. Bucket Pump 52 



73. A Knapsack Sprayer 52 



74. A Barrel Spray Pump 52 



75. Another Style of Barrel Pump 53 



76. A Third Style of Barrel Pump 53 



77. Double-acting Pump 53 



78. Barrel Pump with Cart 54 



79. A Serviceable Outfit 55 



80. A Home-made Tower 55 



81. Outfit for Power Spraying 56 



82. Three-row Sprayer at Work 56 



83. Bamboo Extension 57 



84. Nozzles 58 



85. Double Bordeaux Nozzle 58 



86. Double Vermorel Nozzle 58 



87. Collection of Nozzles 58 



88. Different Types of Nozzles 59 



89. Diagram of Greenhouse with Equilateral Roof 64 



90. Diagram of Greenhouse with Roof Having Unequal Sides 65 



91. Flat-headed Apple-tree Borer 68 



92. Round-headed Apple-tree Borer 69 



93. San Jose" Scale 71 



94. Oyster Shell Scale - 72 



95. Scurfy Scale 73 



96. Buffalo Tree-hopper 74 



