650 



THE OCEAN WORLD. 



Donax trunculus, 312. 



, , rugosus and D. denticulatus, 337. 

 Dredge employed in oyster fishing, 387. 

 Dujardin's discoveries, 92. 

 D'Urville's voyages, 47. Adelia's 



Land, 48. 

 Dykes of Holland undermined, 322. 



Early dawnings of animal life, 62. 



Echineis remora, 642. 



Echineis remora, 643. 



Echinidse, 273. Skeleton and masti- 

 cating apparatus, 275. 



Echinodermata, 253. 



Echinus esculentus, 276. 



Echinus esculentus, 277. 

 ,, lividus, 279. 



Edible Snails, 422. 



Edwardsia calimorpha, 215. 



Edwardsia calimorpha, 215. 



Effects of hurricanes, 40. 



Eggs of Sepia officinalis, 483. 



Electrical Eel, 570. 



Electrical eel, the, 571. 



Electrical properties of the Torpedo, 

 540. Organs described, 542. 



Eltctric ray, the, 539. 



Eledone moschatus, its habits, 491. 



Encrinites, or Stone-lilies, 264. 



Encrinus liliformis, 264. 



Equinoctial currents, 25. 



Eschara, 303, 308. 



Esocidae, 568. 



Euglena viridis, 101. 



Eugltna viridis, 101. 



Evaporation, 16. Itseffectson the sea, 17. 



Exocsetus exiliens, 565. 



Experiments on the Physalia, 144. 



Exuberance of life in the ocean, 55. 



Fabularia discolithes, 82. 



Fabularia discolithes, 81. 



Falkland Islands, 164. 



Fan Gorgon, 223. 



File-fish (Balistes), 561. 



File-fish, the, 561. 



Fish's eye, a, 531. 



Fishes, their organisation, 527. Loco- 

 motive apparatus, ib. Swimming 

 bladder, 528. Breathing apparatus, 



i Sight, ib. Propagation, 532. 

 fication, 533. 



Fishing for Coral, 236. 



,, Electrical Eels with horses, 



572. 



Holibut, 613. 

 Sponges, 70. 

 Fistularia, 621. 

 Flabellum pavonium, 178. 

 Flabellum pavonium, 177. 

 Flat fishes, their organisation, 604. 

 Flight of the Flying-fish, 565. 

 Flounders (Platessa flesus), 608. 

 Flustra foliacea, 307. 

 Flustra foliacea, 308. 

 Flying-fish, 565. 

 Fly ing- fish, the, 566. 

 Flying Gurnard, 628. 

 Foraminifera, 79- 

 Franklin's discoveries, 44, 

 Fringing reefs, 198. 

 Frog-fish (Lophius), 643. 

 Frog-fish, the, 644. 

 Fungia agariciformis, 182. 



,, echinata, 184. 

 Fungia echinata, 182. 



,, patella, 183. 

 Fusus coins, 461. 



,, pagodus, 461. 



,, proboscidiferus, 461. 

 Fusus proboscidiferus, F. pagodus, and 



F. colus, 462. 



Gadidae, 613. 



Galeolaria aurantiaca, 128. 



Ganoidea, 533, 552. 



Generation, Spontaneous, 95. 



Geographical distribution of O ysters, 3 78. 



Gigantic Cephalopod stranded on the 



coast of Jutland, 486. 

 Globe-fish, 559. 

 Globe-fish, the, 559. 

 Gold-fish Dorada, teeth of, 532. 

 Gorgonia fiabellum, 220,221. 



,, verticellata, 222, 223. 

 Gorgonia flabellum, G. verticellata, 223. 

 Gorgonidae, 220. 

 Gulf of Mexico, 8. 



,, Stream, 28. 

 Gurnard, the flying, 628. 



,, the red, 627. 

 Gurnards (Trigla), 627. 

 Gymnotus, its electrical properties, 572. 



Effect of its shock, 572. 



