2 3 8 



THE BOOK OF NATURE STUDY 



Prothalli, male and female, 



iv. 84, 88, 96. 

 Protococcus and coloration of 



water, v. 53. 



Protopterus, habits of, ii. 100. 

 Protozoa, ii. 126, 185, 188, 200. 

 Proventriculus of birds, i. 77. 

 Prunus, species of, v. 148, 160. 

 Psamma arenaria, iii. 61, v. 



4. 5. 7- 



Psychology, comparative, ii. 

 209. 



Ptarmigan, summer and winter 

 plumage of, i. 62, ii. 216, 217. 



Puff-ball, iv. 131, 141. 



Pumpkin, iii. 10, 12. 



Pupation, i. 186. 



Purpurea, ii. 170. 



Purple dead nettle, v. 30 ; fork- 

 moss, iv. 109 ; laver, ii. 

 84, v. 10 ; loosestrife, v. 40, 

 41, 52 ; molinia, iv. 200, 209 ; 

 sea-snake, ii. 179 ; tipped 

 sea-urchin, ii. 153, 180. 



Purse sponge, ii. 179. 



Purslane, sea, v. 10, ii. 



Pyrola, species of, iv. 145. 



Pyrus, species of, iv. 48, 50, v. 

 148. 



Quaking grass, v. 59, 60. 62. 



Quarry in theHythe beds, illus- 

 tration of, v. 1 88, showing 

 glacial drift, 192. 



Queen wasp hibernating, i. 178. 



Queens and drones, ii. 204. 



Quercus, species of, iii. 37, iv. 

 152, 164. 



Quill or calamus, i. 70, 71. 



Quillwort, v. 2124, 29. 



Quince stocks, v. 160. 



Rabbit, habits and varieties of, 



i. 28, 30, 32, ii. 201, 221, iv. 



146. 



Racehorse, i. 39. 

 Racemose, diagrams of, iii. 98. 

 Radicle, growth in the soil, iii. 



12, 13, 16, 18. 

 Radiolarians, ii. 184. 

 Radish, iii. 7, 12, 21, 29, 32, 34, 



35, v. 17, 76, 86, 140. 

 Radula, iv. 121, 140. 

 Ragged Robin, iii. 83, 188, 191. 

 Ragwort, iv. 185, 210, v. 7, 86. 

 Railways, in relation to time, 



yi. 80. 

 Rain, in relation to wind, vi. 1 7 ; 



effect on landscape ; illustra- 

 tion, vi. 36. 

 Rainbows, vi. 62 ; clouds, 



formation of, vi. 19 ; 



fall, average at the various 



stations, vi. 23, 26, 27, 28, 29, 



30, 32, 35. 36, 37. 38, 39 ; 



gauge, vi. 23, 24, 40, 43- 

 Rainy season, vi. 38. 

 Ramadan. Mohammedan feast 



of, vi. 88. 

 Rana, species of, i. 122, 123, 



128, ii. 96. 



Ranunculaceae, iv. 68, v. 38. 

 Ranunculus, species of, iii. 60, 



66, 89, 90, 93, 96, 115, iv. 



186, 187, v. 36, 48, 62, 74, 84. 



Rape, v. 78. 



Raphnus, species of, v. 17, 140. 



Raspberries, cultivation, life- 

 history, and varieties of, iii. 

 62, 66, v. 117, 126, 148, 131, 

 160. 



Ratel, of Africa, i. 60. 



Rats, varieties of, i. 30, ii. 196, 

 216. 



Rattle, red and yellow, iii. 31 ; 

 snake, habits of, i. 116, 119. 



Rattles, iv. 180, 181. 



Raven, i. 80, ii. 217. 



Razor-shells, ii. 128. 



Razor-strop fungus, iv. 130. 



Recapitulation theory, ii. 101. 



Red Campion, life-history and 

 illustration of, iii. 166, 188, 

 190, 191, iv. 69, 71, 73, 74, 

 76, 161, v. 74 ; clover, v. 

 58 ; cup-moss, iv. 138 ; 

 currants, v. 151 ; deer, i. 32, 

 67, ii. 201, 213 ; grouse, ii. 

 213, 217 ; poppy, iv. 21, 68, 

 69 ; rattle, iv. 181, v. 36 ; 

 seaweeds, v. 10 ; throated 

 diver, ii. 217 ; wing, i. 83, 

 vi. 5 ; wood-ant, ii. ii. 



Reed, iv. 177, 193, v. 27, 28, 

 45. 76 ; association, v. 29 ; 

 bunting, ii. 190 ; maces, v. 

 44, 45 ; poa, v. 45. 



Reeves, plumages of, i. 89. 



Regular flowers, iii. 106. 



Reindeer in Britain, ii. 221 ; 

 moss, iv. 139 ; moss lichen, 

 iv. 138. 



Reproduction and dispersion 

 of aquatic plants, v. 49. 



Reproduction, vegetative or 

 asexual, iii. 96. 



Reproductive organs of flower- 

 ing plants, iii. 95. 



Reptiles, i. 68, 109-119, 158, 

 159, ii. 170, 200, 218. 



Respiration, iii. 53. 



Rest-Harrow, iii. 76, 83, v. 214 ; 

 figured, v. 69. 



Rhinoceros, i. 40, 57 ; in 

 Britain, ii. 221. 



Rhizome, iii. 60, iv. 175, 182. 



Rhizopods, ii. 188. 



Rhodites, species of, ii. 205. 



Rhododendrons, v. 217. 



Rhynchota, ii. 195, 203. 



Rhythm of the seasons, vi. 51. 



Ribbon-ferns, iv. 80 ; worms, 

 ii. 161, 179. 



Ribes, species of, v. 148, 161, 

 162. 



Ribwort plantain, iii. 155, 166, 

 205, 208 ; life-history of, iv. 

 72 ; illustration of, v. 14, 60, 

 61. 



Rice, contain starch, iii. 50. 



Ringed plover, method of 

 covering its eggs, i. 100. 



Ripple marks, on sandy sea- 

 shores, v. 17; illustration of, 

 vi. 114. 



Rivers, ii. 169, v. 54, 193, 

 vi. 106, 109, up, 170, 179. 



Riverside birds, ii. 196. 



Roach, ii. 197. 



Road, lessons of, vi. 93-97. 



Robin, i. 82, 83. 



Robin's pin-cushion, ii. 205. 



Rockcress, v. 30. 



Rocks, iv. 136, 208, v. 112, 

 vi. 115, 123, 127, 128, 

 189, 190, 204, 218 ; folded 

 illustration, vi. 120 ; intru- 

 sive illustration, vi. 121 ; 

 stratification of illustration, 

 vi. in. 



Rodents or gnawing animals, 

 i. 28. 



Roe-deer, ii. 213. 



Roman snail, ii. 49, 56. 



Rooks, ii. 210. 



Root, root crop, and root 

 systems, iii. 12, 14, 17, 18, 22, 

 26, 28, 31, 32, 68, 73, 91, 92, 

 vi. 31. 



Rosaceae, v. 60. 



Rosaceous trees, bud scales of, 

 iii. 43. 



Rose, varieties of, iii. 71, 77, 82, 

 iv. i, 17, 52, 69, 72, 73 74, 78, 

 156, 158, v. 40, 55, 72, 73, 

 117, 118, 172, 173, 176. 



Rosebay, v. 72. 



Rosemary, v. 176. 



Rosette plants, cylindrical 

 leaves of, v. 23. 



Rotation of crops, v. 78, 87 ; 

 of movement, vi. 75 ; of the 

 earth, vi. 81. 



Rothampsted Experimental 

 Station, v. 58, 60, 77, 208, 

 209. 



Rotifers, ii. 126, 187, 188. 



Round-leaved sundew, iv. 41, 

 42, v. 32. 



Round-mouths, i. 155, 158. 



Rowan, iv. 160. 



Royal fern, iv. 89, 93. 



Ruff and reeve in autumn, plum- 

 ages of, i. 86, 89. 



Ruminant, stomach of, i. 38. 



Runner, iii. 96, v. 117. 



Rural economy, ii. 209. 



Rushes, iv. 182, 183, 192, 196, 

 199, 201, 202, v. 28, 33, 52, 

 67, i94 217- 



Russian steppes, winter scenes 

 of, vi. 5. 



Rusts, iv. 125. 



Rye, v. 78 ; grass perennial, iii. 

 166, iv. 70, v. 57, 217. 



Sacculina, ii. 182. 

 Saddle-back fungus, iv. 154. 

 Saffron crocus, iii. 161 ; plant 



figured, iii. 163. 

 Sage, iv. 74- 

 Sagitta, ii. 186. 

 Sagittaria, v. 45. 

 Sahara desert, vi. 31. 

 Sainfoin, v. 79, 216. 

 Salad Burnet, iv. 206 ; wind 



pollinated, v. 60, 61, 66. 

 Salad plants, mustard, cress, 



radishes, lettuces, v. 130. 

 Salamanders, i. 120. 

 Salicornia plant association, 



illustration of, v. 2. 

 Salix, species of, iv. 46, 100, 



v. 2, 8, 46. 

 Sallow, iv. 47, r6i. 



