INDEX. 



445 



Poison not nfTccting certain colored nni- 



nialn. 'X. 

 eimilar effect of, on animals and 



plants, -IIK. 

 Pollen of flr-treea, 198. 



transported by various means, 188, 



1!)5. 

 Pool, Colonel, on striped hcmionns, 162. 

 Potamoireton. :V>1. 

 PreBlwich. Mr., on Knijlisli and French 



eocene formations, .'JUO. 

 Proctotrupes, 177. 

 Proleolepas, 150. 

 Protens, 1 13. 

 Tsycbology, future progress of, 4;3C. 



Quap^a, striped, 16.3. 

 (Jnerens, variability of, CO. 

 Quince, grafts of, 245. 



Rabbit, disposition of young, 207. 

 Kiices, domestic, characters of, 29. 

 Kace-horses, .\n»b, 4-1. 



English, 329. 

 Hamond, on ])lants of Pyrenees, S3f<. 

 lliimsay. Prof., on suba'erial denudation, 

 209. 



on thickness of the British forma- 

 tions. 271. 



on faults, 270. 

 Kamsay. Mr., ou instincts of cuckoo, 282. 

 Ratio of increase, 71. 

 Itats supplant ini: each other, 81. 



acclimatization of, 145. 



blind in cave, 142. 

 Rattlesnake, 19«. 

 Reason and instinct, 201. 

 Recapitulation, general, 412. 

 Reciprocity of crosses, 242. 

 Record, gcoloirical, imperfect, 2fi6. 

 Reng^rer on (lies destroying cattle, 78. 

 Jti'produclion, rate of, 71. 

 Resemblance to parents in mongrels and 



hybrids, 2(jl. 

 Reversion, law of inheritance, 28. 



in i)igeons to blue color. 100. 

 Rhododendron, sterilitv of, 2.'J.S. 

 Itichard, Prof., on Asp{caii)a. 377. 

 Richardson, Sir. J., on structure of 

 squirrels. 173. 



on llshes of the southern hemispliere, 

 3t5. 

 Robinia, grafts of, 245. 

 Rodents, blind. 141. 



Roi.'ers.Pri»r.,Mnp of North America, 277. 

 Itudimentarv organs, 404. 

 Rudiments iuiportuut for classification, 



37C. 

 RQtimeyer, on Indian cattle, 31, 239. 



Balnmandm atra, 405. 



Saliva used in nests. 225. 



Sageret on grafts, 245. 



Salmons, males, fighting, and hooked 



jaws of, 91. 

 Salt-water, how far injurious to seeds, 



3.32. 

 not destructive to landehells, SCI, 3C2. 



Salter, Mr., on early death of hybrid cm 



bryos, 249. 

 Sanrophagus suli)hnrntiis, 17(>. 

 Schiodte, on blind insects, 112. 

 Schlegel, on snakes, 147. 

 Scott, J., Mr., on the self-sterility of or- 

 chids, 2.37. 



on the crossing of varieties of ver 

 bascnm, 2.59. 

 Sea-water, how far injurious to seeds. 332. 



not destructive to land-shells, 361, .362. 

 Sebright, Sir J., on crossed animals, 32. 

 Sedgwick, Prof., on groups of species 



suddenly appearing, 2,sC. 

 Seedlings destroyed by insects, 74. 

 Seeds, nutriment in, 82. 



winged, 149. 



means of dissemination, 187, 194, 2.34. 



powers of resisting salt-water, 3.32. 



in crops and intestines of birds, 333. 



eaten by fish, 334, 355. 



in mud, 353. 



hooked, on islands, 358. 

 Selection of domestic products. 40. 



principle not of recent origin, 4.3. 



unconscious, 43. 



natural, 84. 



eexnal, 90. 



objections to term. 85. 



natural, has not induced sterility, 2-16. 

 Sexes, relations of, 90. 

 Sexual characters variable, 156. 



selection, 90. 

 Sheep, Merino, their selection, 41. 



two sub-breeds unintentionally pro- 

 duced, 44. 



mountain, varieties of, 81. 

 Shells, color of. ViS. 



hinges of, 188. 



littoral, seldom embedded, 273. 



fresh-water, long retjiin the same 

 forms, .314. 



fresh-water, dispersal of, 353. 



of Madeira. 3.'J7. 



land, distribution of, ^58. 



land, resistin'T salt-water, .361, .362. 

 Silene, infertility of crosses, 241. 

 Silliman, Prof., on blind rat. 142. 

 Sitaris, metamorphosis of, 402. 

 Skulls of young mammals, 192, 303. 

 Slave-makiiiir instinct, 212. 

 Smith, Col. Hamilton, on striped horses, 

 163. 



Mr. Fred., on slave-making ants, 214. 



on neuter ants. 229. 

 Snake with tooth for cutting through egg- 

 shell, 212. ^ ^^ 

 Somerville, Lord, on selection of slicep, 



41. 

 Sorbns, grafts of, 215. 

 Spaniel. "King Charles's breed, 44, 

 Specialization of organs. 121. 

 Species, polymorphic, M. 



dominant, M. 



common, variable, 62. 



in large grneni variable. Gt. 



groups of, suddenly ap|)earing, 28G 

 289. 



beneath Silurian formations, 291. 



