222 



INDEX 



Crystallization, law of, 191. 

 Crystals, snow, 191. 

 Cyphoderia, 155. 



Daisies, motion of, 205. 

 Darwin, Mr. C., quoted, 16. 



on phosphorescence, 48. 



on coral reefs, 164. 

 Diatoms, no. 

 Difflugia, 143. 

 Dover Natural HistorySociety, 



plan of, 34. 



Dragon-fly, eye of, 202. 

 Dytiscusmarginalis,eyeof, 199. 



Echinoidea, 38. 

 Echinodermata, 173. 

 Echinus, 35. 

 Education, true, 15. 

 Edward, Mr. T., 24. 

 Eggs of insects, 122. 

 Ehrenberg on glass sponge, 53. 



on rhizopods, 156. 

 Encrinites, 171. 

 Eozoon Canadense, 135. 

 Enplectella, 53. 



mode of fishing, 157. 

 Evolution, 16. 

 Extrinsic shells, 137, 140. 

 Eyes of insects, 199. 



Flint implements, 211. 

 Floscularia ornata, 182. 

 Foraminifera, 130. 

 Fossil sponges, 67. 



Geological hammer, 208. 



Girdle of Venus, the, 52. 



Gladstone, Mr., on Natural 

 History, 15. 



Glass sponges, 58. 



mode of fishing for, 59. 



Globigerina, 73. 



Goold, Mr. J., pendulum of, 

 116. 



Gosse, Mr. P. H., on sea- 

 urchins, 42 ; on jelly- 

 fishes, 51. 



Guettardia stellata, 219. 



Haeckel, Prof. E. G., 17. 

 on radiolarians, 89. 

 Hammer for flints, 208. 

 Hamites, 210. 

 Heliopelta, 115. 

 Horsnaill, Mr. E., 17. 

 House-fly, 123. 



eye of, 202. 



Huxley, Prof., on snow, 195. 

 Hyalonema, 63. 

 Hyalosphenia papilio, 149. 

 Hydra, 168. 



Ice, 191. 

 Inocerami, 210. 

 Insects, 167. 



eggs of, 122. 



eyes of, 199. 

 Intrinsic shells, 140. 



Jelly-fishes, 50. 



Kent, Mr. S., on sea-urchin 



spikes, 41. 

 on Barrier Reef, 164. 



