Japanese crab, 152. Jellyfishes, 26-35. Beauties of, 27. Development of, 29. Young of, 29. June bugs, 197. K Kallima, 215. L Labium, 206. Labrum, 208. Lake Mono, 207. Lamp shell, 80. Land crab, 149, 150. Larva, 163. Lasso, 28. Leaf hopper, 201. Leech, 82. Lepidoptera, 217. Lernæans, 136. Limax, 115. Lime, 50. Limnoria, 138. Limpet, 105, 108. Lingula, 80. Lobster, 132, 140. Locust, 190. Lucernaria, 30. Luminous crab, 157. M Macrocheira, 152. Mactra, 101. Malay, 72. Mammoth Cave, 143. Mantis, 186. May fly, 178. Melicerta, 32. Metridia, 156. Mimicry, 186. Mimicry of insects, 187. Mite, 166. Mole cricket, 201. Moseley, Dr., 147. Mosquito, 208. Development of, 209. Moth, 221. Mushroom coral, 46. Mussel, 97. Mygale, 176. N Nassa, 107. Natica, 106. National Museum, 122. Nemesia, 174. Nereis, 86. Noctiluca, 16. Noctiluca, phosphorescence, 16. Norway lobster, 129. Nummulites, 13. O Ocean, 15. Lime in, 15. Octopus, 122. Onchidium, 155. Eyes of, 155. Ophiocoma, 62. Oyster crab, 152. P Paper nautilus, 125. Paramœcium, 12. Pearl, 94. Pelagia, 35. Pentacrinus, 56. Pentacta, 71. Peripatus, 164. Philippines, 113. Phorus, 103. Phosphorescence, 7, 84, 156. Phyllium, 189. Physalia, 33. Physophora, 36. Planarian, 73. Pleurobranchia, 53. Polycirrus, 86. Polyp, 46. Polyzoan, 77. Pompilius, 223. Porpita, 37. Potato bug, 198. Prawns, 142. Praya, 36. Pteropod, 115. R Radiolarian, 14. Razor clam, 99. Reef, 53. Rhizostoma, 32. Rotifer, 76. S San Clemente, 112. Sand collar, 106. Sand dollar, 67. Sand flea, 138. Santa Catalina, 32, 50, 109. Sapphirina, 167. Scale insects, 203. Scorpion, 160. Sea anemone, 38, 43. Sea cucumber, 70, 71. Sea pen, 54. Sea slug, 114. Semper, Dr., 82. Sepia, 118. Serpulæ, 88. Shrimps, 131. Sierra Madre, 172. Silk worm, 219. Siphon, 92. Snail, 90. Soft-shelled crab, 147. Southern California, 7. Spicules, 21, 72. Spider, 168. Spider crab, 151. Spirit crab, 128. Sponges, 18. Squash bug, 199. Squid, 114, 120, 121. Squilla, 139. Starfish, 60, 64. Stings, 229, 233. Stone lilies, 56. St. Paul's Rocks, 147. Sucker, 122. Syllis, 86. Synapta, 72. T Taltritus, 138. Tarantula, 174. Terebratula, 80. Teredo, 100. Tiger beetle, 196. Timos, 175. Trichina, 75, 76. Tritonia, 114. Trochus, 103. Turritella, 103. U Univalve, 104. Urchin, 65, 69. V Velella, 35. W Walking stick, 188. Wasp, 167. Water boatman, 200. Water flea, 136. Web, 169. White ant, 184. ELEMENTARY NATURE STUDY Abbott's A Boy on a Farm 45 cents