| FIG. | | PAGE |
| 1. | Egg of Basilarchia disippus, magnified | 3 |
| 2. | Egg of Basilarchia disippus, natural size | 3 |
| 3. | Egg of Papilio turnus, enlarged | 4 |
| 4. | Egg of Anosia plexippus, magnified | 4 |
| 5. | Egg of Anosia plexippus, natural size | 4 |
| 6. | Egg of Anthocharis genutia, magnified | 4 |
| 7. | Egg of Lycæna pseudargiolus, magnified | 4 |
| 8. | Egg of Melitæa phaëton, magnified | 4 |
| 9. | Micropyle of egg of Pieris oleracea, magnified | 5 |
| 10. | Eggs of Grapta comma, magnified | 5 |
| 11. | Eggs of Vanessa antiopa, magnified | 5 |
| 12. | Caterpillar of Papilio philenor | 6 |
| 13. | Head of caterpillar of Papilio asterias, magnified | 6 |
| 14. | Head of caterpillar of Anosia plexippus, magnified | 6 |
| 15. | Head of caterpillar of Anosia plexippus, side view, enlarged | 7 |
| 16. | Caterpillar of Anosia plexippus, natural size | 7 |
| 17. | Fore leg of caterpillar of Vanessa antiopa, enlarged | 7 |
| 18. | Anterior segments of caterpillar of A. plexippus | 7 |
| 19. | Proleg of caterpillar of Vanessa antiopa, enlarged | 7 |
| 20. | Caterpillar of Basilarchia disippus | 8 |
| 21. | Early stages of goatweed butterfly | 9 |
| 22. | Head of caterpillar of Papilio troilus | 9 |
| 23. | Caterpillar of milkweed butterfly changing into chrysalis | 11 |
| 24. | Chrysalis of milkweed butterfly | 12 |
| 25. | Chrysalis of Papilio philenor | 12 |
| 26. | Caterpillar and chrysalis of Pieris protodice | 12 |
| 27. | Chrysalis of Pieris oleracea | 13 |
| 28. | Butterfly emerging from chrysalis | 13 |
| 29. | Head of milkweed butterfly, showing parts | 14 |
| 30. | Cross-section of sucking-tube of butterfly | 15 |
| 31. | Longitudinal section of the head of the milkweed butterfly | 15 |
| 32. | Interior structure of head of milkweed butterfly | 16 |
| 33. | Labial palpus of butterfly | 16 |
| 34. | Legs of butterfly | 17 |
| 35. | Parts of leg of butterfly | 17 |
| 36. | Scales on wing of butterfly | 18 |
| 37. | Androconia from wing of butterfly | 18 |
| 38. | Outline of wing of butterfly | 20 |
| 39. | Arrangement of scales on the wing of a butterfly | 20 |
| 40. | Figure of wing, showing names of veins | 21 |
| 41. | Internal anatomy of caterpillar of milkweed butterfly | 22 |
| 42. | Internal anatomy of milkweed butterfly | 23 |
| 43. | Plan for folding net-ring | 27 |
| 44. | Insect-net | 27 |
| 45. | Plan for making a cheap net | 27 |
| 46. | Cyanide-jar | 29 |
| 47. | Paper cover for cyanide | 29 |
| 48. | Method of pinching a butterfly | 30 |
| 49. | Cheap form of breeding-cage | 35 |
| 50. | Breeding-cage | 36 |
| 51. | Butterfly in envelope | 38 |
| 52. | Method of making envelopes | 38 |
| 53. | Setting-board | 39 |
| 54. | Setting-block | 39 |
| 55. | Butterfly on setting-block | 39 |
| 56. | Setting-needle | 40 |
| 57. | Setting-board with moth upon it | 40 |
| 58. | Butterfly pinned on setting-board | 41 |
| 59. | Drying-box | 41 |
| 60. | Drying-box | 42 |
| 61. | Apparatus for inflating larvæ | 45 |
| 62. | Tip of inflating-tube | 46 |
| 63. | Drying-oven | 46 |
| 64. | Drying-oven | 47 |
| 65. | Detail drawing of book-box | 48 |
| 66. | Detail drawing of box | 48 |
| 67. | Detail drawing of box | 49 |
| 68. | Insect-box | 49 |
| 69. | Detail drawing of drawer for cabinet | 51 |
| 70. | Detail drawing for paper bottom of box to take place of cork | 52 |
| 71. | Manner of arranging specimens in cabinet or box | 52 |
| 72. | Naphthaline cone | 53 |
| 73. | Butterflies packed for shipment | 55 |
| 74. | Forceps | 56 |
| 75. | Forceps | 57 |
| 76. | Antennæ of butterfly | 61 |
| 77. | Antennæ of moths | 62 |
| 78. | Neuration of genus Anosia | 81 |
| 79. | Swarm of milkweed butterflies, photographed at night | 83 |
| 80. | Neuration of genus Mechanitis | 86 |
| 81. | Neuration of genus Ceratinia | 88 |
| 82. | Neuration of genus Dircenna | 89 |
| 83. | Fore leg of female Dircenna klugi | 89 |
| 84. | Neuration of genus Heliconius | 91 |
| 85. | Young caterpillar of Vanessa antiopa | 94 |
| 86. | Neuration of genus Colænis | 95 |
| 87. | Neuration of genus Dione | 96 |
| 88. | Neuration of genus Euptoieta | 98 |
| 89. | Neuration of genus Argynnis | 101 |
| 90. | Neuration of genus Brenthis | 129 |
| 91. | Neuration of genus Melitæa | 138 |
| 92. | Neuration of genus Phyciodes | 151 |
| 93. | Neuration of genus Eresia | 157 |
| 94. | Neuration of genus Synchloë | 159 |
| 95. | Neuration of genus Grapta | 163 |
| 96. | Neuration of genus Vanessa | 167 |
| 97. | Neuration of genus Pyrameis | 170 |
| 98. | Neuration of genus Junonia | 172 |
| 99. | Neuration of genus Anartia | 174 |
| 100. | Neuration of genus Hypanartia | 175 |
| 101. | Neuration of genus Eunica | 176 |
| 102. | Neuration of genus Cystineura | 177 |
| 103. | Neuration of genus Callicore | 178 |
| 104. | Neuration of genus Timetes | 179 |
| 105. | Neuration of genus Hypolimnas | 181 |
| 106. | Neuration of genus Basilarchia | 182 |
| 107. | Leaf cut away at end by the caterpillar of Basilarchia | 183 |
| 108. | Hibernaculum of caterpillar of Basilarchia | 183 |
| 109. | Neuration of genus Adelpha | 187 |
| 110. | Neuration of genus Chlorippe | 188 |
| 111. | Neuration of genus Pyrrhanæa | 192 |
| 112. | Neuration of genus Ageronia | 193 |
| 113. | Neuration of genus Victorina | 195 |
| 114. | Neuration of genus Debis | 199 |
| 115. | Neuration of genus Satyrodes | 200 |
| 116. | Neuration of genus Neonympha | 201 |
| 117. | Neuration of genus Cœnonympha | 205 |
| 118. | Neuration of genus Erebia | 208 |
| 119. | Neuration of genus Geirocheilus | 211 |
| 120. | Neuration of genus Neominois | 212 |
| 121. | Neuration of genus Satyrus | 214 |
| 122. | Neuration of genus Œneis | 219 |
| 123. | Caterpillars of Œneis macouni | 221 |
| 124. | Neuration of genus Libythea | 226 |
| 125. | Neuration of base of hind wing of genus Lemonias | 228 |
| 126. | Neuration of genus Lemonias | 229 |
| 127. | Neuration of genus Calephelis | 232 |
| 128. | Neuration of genus Eumæus | 237 |
| 129. | Neuration of Thecla edwardsi | 238 |
| 130. | Neuration of Thecla melinus | 242 |
| 131. | Neuration of Thecla damon | 246 |
| 132. | Neuration of Thecla niphon | 249 |
| 133. | Neuration of Thecla titus | 250 |
| 134. | Neuration of genus Feniseca | 251 |
| 135. | Neuration of genus Chrysophanus | 252 |
| 136. | Neuration of Lycæna pseudargiolus | 267 |
| 137. | Neuration of Lycæna comyntas | 268 |
| 138. | Neuration of genus Dismorphia | 273 |
| 139. | Neuration of genus Neophasia | 274 |
| 140. | Neuration of genus Tachyris | 276 |
| 141. | Neuration of genus Pieris | 277 |
| 142. | Neuration of genus Nathalis | 281 |
| 143. | Neuration of genus Euchloë | 282 |
| 144. | Neuration of genus Catopsilia | 286 |
| 145. | Neuration of genus Kricogonia | 287 |
| 146. | Neuration of genus Meganostoma | 288 |
| 147. | Neuration of genus Colias | 289 |
| 148. | Neuration of genus Terias | 295 |
| 149. | Neuration of genus Parnassius | 305 |
| An Astronomer's Conception of an Entomologist | 317 |
| 150. | Head and antenna of genus Pyrrhopyge | 319 |
| 151. | Neuration of genus Pyrrhopyge | 319 |
| 152. | Neuration of genus Eudamus | 321 |
| 153. | Antenna and neuration of genus Plestia | 322 |
| 154. | Neuration of genus Epargyreus | 323 |
| 155. | Neuration of genus Thorybes | 324 |
| 156. | Neuration of genus Achalarus | 326 |
| 157. | Antenna and neuration of genus Hesperia | 327 |
| 158. | Neuration of genus Systasea | 329 |
| 159. | Neuration of genus Pholisora | 330 |
| 160. | Neuration of genus Thanaos | 332 |
| 161. | Neuration of genus Amblyscirtes | 340 |
| 162. | Neuration of genus Pamphila | 342 |
| 163. | Neuration of genus Oarisma | 343 |
| 164. | Neuration of genus Ancyloxypha | 345 |
| 165. | Neuration of genus Copæodes | 346 |
| 166. | Neuration of genus Erynnis | 347 |
| 167. | Neuration of genus Thymelicus | 351 |
| 168. | Neuration of genus Atalopedes | 352 |
| 169. | Neuration of genus Polites | 353 |
| 170. | Neuration of genus Hylephila | 354 |
| 171. | Neuration of genus Prenes | 355 |
| 172. | Neuration of genus Calpodes | 355 |
| 173. | Neuration of genus Lerodea | 356 |
| 174. | Neuration of genus Limochores | 357 |
| 175. | Neuration of genus Euphyes | 360 |
| 176. | Neuration of genus Oligoria | 361 |
| 177. | Neuration of genus Poanes | 362 |
| 178. | Neuration of genus Phycanassa | 362 |
| 179. | Neuration of genus Atrytone | 364 |
| 180. | Neuration of genus Lerema | 366 |
| 181. | Megathymus yuccæ, ♁ | 367 |
| 182. | Larva of Megathymus yuccæ | 368 |
| 183. | Chrysalis of Megathymus yuccæ | 368 |
| The Popular Conception of an Entomologist | 369 |