226 



INDEX. 



Platner, on formation of germ- 

 cells, 138. 172. 



Polar bodies, 86, 93, 114,115, 1 19, 

 170; parthenogenetic, 93, iii. 



Polyergus rufescens, 25. 



Polyphemus, polar bodies of, iii. 



Problems, of the Day, 71. 



Proteus, blind, 7, 28. 



Psyche, parthenogenesis of, 109. 



Psyehidae, 19. 



Pteris, parthenogenesis in, 169. 



Pyrrhocoris, on formation of 

 germ-cells in, 139, 141. 



Quanz, 45. 



Rabbit, number of cells in cochlea, 



57- 



Reineke, 47. 



Rejuvenescence, theory of, 195. 



Retzius, on the cochlea, 57. 



Rhodiets. parthenogenesis in, 

 220. 



Rolph, explanation of partheno- 

 genesis, 172. 



Rossini, 47. 



Rotifers, 27 ; polar bodies in, iii, 

 152 ; parthenogenesis in, 216. 



Rousseau, on the origin of music, 



53- 

 Rudimentary organs, 28. 



Sagitta, number of Idants, 146. 



Sarasin, on penetration of light in 

 water. 8 : on Epicrium, 9. 



Scarlatti, 47. 



Scheibe. on the origin of music, 53. 



Schewiakoff, on division in In- 

 fusoria, 184. 



Schopenhauer, 29. 



Scytosiphon, parthenogenesis in, 

 91. 



Semper, on eyes of Oncidium, 183. 



Sexual selec'ijion, 34, 39. 



Siebold, von, on parthenogenesis, 

 108. 



Solenobia, parthenogenesis of, 

 109. 



Soma, 74. 79. 



Somatic, cells, 77, 81 ; idioplasm, 



83- 



Somatoplasm, 83. 



Spencer, Herbert, on the origin 

 of music, 53. 



Spermatozoon, maturation of, 117, 

 122, 123, 132. 



Sphaerechinus, fertilization in, 92. 



Stentor, 181, 192, 



Strasbiirger, 83, 86, 92, 95, 112. 

 150, 168, 172, 189. 



Stumpf, on the origin of music, 53. 



Sully, on ' Sensation and Intui- 

 tion,' 66. 



Swammerdam, on fertilization. 

 106. 



Tahitians, music of, 38. 

 Thalberg, 52. 



Theories, real and ideal. 80. 

 Tiara, number of idants in. 146. 

 Troubadours, 42, 69. 

 Twins, 133. 



Urostyla, division of, 184, 186. 



Van Beneden, on fertilization. 85. 



91, III, 114, 196; on nuclear 

 division, 112, 126, 131, 172, 176. 



Variation, origin of, 95 ; in par- 

 thenogenetic form, 161, 166. 

 Vines, criticisms on Vol. i, 73, 78, 



92, 94. 

 Volkmann, 47. 

 Volvox, 77. 



Vorticellidae, behaviour of micro- 

 nucleus in, 187. 



Waldeyer, on nuclear loops, 85 

 "Wallace, on natural selection, 1=^. 



33- 



"Wasps, parthenogenesis of, 109. 



"Weber, 46. 



"Whales, degeneration of sense of 



smell, 9 ; naked skin, 19. 

 "Whitman, on nature of nucleus, 



85. 

 Xenarchus, 34. 



