650 
Donax trunculus, 312. 
»,  rugosus and D. denticulatus, 337. 
Dredge employed in oyster fishing, 337. 
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. 
Lchinets remora, 643. 
Echinide, 273. Skeleton and masti- 
cating apparatus, 275. 
Echinodermata, 253. 
Echinus esculentus, 276. 
LEchinus esculentus, 277. 
3, _ 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, 57%. 
Electrical properties of the Torpedo, 
540. Organs described, 542. 
Electric ray, the, 539. 
Eledone moschatus, its habits, 491. 
Encrinites, or Stone-lilies, 264. 
Encrinus liliformis, 264. 
Equinoctial currents, 25. 
Eschara, 303, 308. 
Esocidze, 568. 
Euglena viridis, 101. 
Euglena viridis, Lol, 
Evaporation, 16. Itseffects on the sea, 17. 
Exoceetus 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. 
Fiish’s eye, a, 531. 
Fishes, their organisation, 527. Loco- 
motive apparatus, 7. Swimming 
bladder, 528. Breathing apparatus, 
530. Sight, 2. Propagation, 532. 
Classification, 533. 
THE OCEAN WORLD. 
Fishing for Coral, 236. 
a Electrical Eels with horses, 
572- 
in Holibut, 613. 
3 Sponges, 70, 
Fistularia, 621. 
Flabellum pavonium, 178. 
Flabellum pavonium, 177. 
Flat fishes, their organisation, 604. 
Flight of the Flying-fsh, 565. 
Flounders (Platessa flesus), 608. . 
Flustra foliacea, 307. 
Flustra foliacea, 308. 
Flying-fish, 565. 
Flying-fish, the, 566. 
Flying Gurnard, 628. 
Foraminifera, 79. 
Franklin’s discoveries, 44. 
Fringing reefs, 198. 
Frog-fish (Lophius), 643. 
Frog-fish, the, 044. 
Fungia agariciformis, 182. 
»  echinata, 184, 
Fungia echinata, 182. 
», patella, 183. 
Fusus colus, 461. 
>» pagodus, 461. 
3, proboscidiferus, 461. 
Fusus proboscidiferus, F. pagodus, and 
F. colus, 462. 
Gadide, 613. 
Galeolaria aurantiaca, 128. 
Ganoidea, 533, 552. 
Generation, Spontaneous, 95. 
Geographical distribution of Oysters, 378. 
Gigantic Cephalopod stranded on the 
coast of Jutland, 486. 
Globe-fish, 559. 
Globe-fish, the, 559. 
Gold-fish Dorada, teeth of, 532. 
Gorgonia flabellum, 220, 221. 
ee verticellata, 222, 223. 
Gorgonia flabellum, G. verticellata, 223. 
Gorgonide, 220. 
Gulf of Mexico, 8. 
», Stream, 28. 
Gurnard, the flying, 628, 
35 the red, 627, 
Gurnards (Trigla), 627. 
Gymnotus, its electrical properties, 572. 
Effect of its shock, 572. 
