( 609 ) 



INDEX. 



Abdominales, 560. 



Acalephse, or Sea Nettles, 195. 



Acanthopterygians, 590. 



Acclimatizing sponges, 80. 



Acephalous Mollusca, 316. 



Acetabuliferous Cephalopods, 448. 



Achatina zebra, 409. 



Actiuiaria, 181. 



dianthus, 189. 



^Equerea violacea, 198. 



Agalma rubra, 239. Its graceful appear- 

 ance, ib. Its interior, 240. 



Alcyonaria, 119. 



proper, 144. 



Alcyonium digitatum, 144, 151. 



Allice Shad, 584. 



Alternate generation in the Biphora, 315. 



Alveolina oblonga, 95. 



Ambulacral appendages, 263. 



Amcebse diffluens, 86. 



princeps, 86. 



Ammodytes lancea, 537. 



Anabas, 596. 



Analysis of sea water, 15, 18. 



Anatomy of the Carp, 504. 



Anchovy (Engraulis), 589. 



Ancient trilobite, 448. 



Animalcules, their action, 10. 



Antarctic Ocean, 3. Discoveries, 44, 50. 



Antipathidse, 148, 149. 



Apiocrinus pentacrinus, 271. 



Aplysia depilans, shell and animal, 393. 



Apoda, 536. 



Apolemia contorta, 241. Parts magnified, 

 242. 



Aporous Madrepores, 150. 



Appearance of the sea, 60. 



Aquarium, the, 66. 



Arctic Ocean, 9. 



Argonauta, fables concerning it, 467. Aris- 

 totle's description, ib. Oppian's descrip- 

 tion, 468. His mistakes, ib. Eumphius, 

 469. Keal history, 470. Madame Power's 

 experiments, ib. Locomotive organs, 

 471. 



Argonauta argo, shell and animal, 469. 



papyracea, animal and shell, 471. 



Aristotle's Lantern, 287, 289. 

 Ascidia microcosmus, 310. 



pedunculata, 311. 



Ascidians, simple, social, and composite, 310. 

 Aspergillum vaginiferum, 331. 

 Asteracanthion glacialis, 264. 

 Asterias, 260. 



aurantiaca, 263. 



rubens, 261. 



Asterophyton verrucosum, 279. 

 Astrea punctifera, 155. 

 Atlantic Ocean, 2. 

 Atmospheric currents, 29. 

 Atolls and Atollons, 166. 

 Aurelia aurita, 199. 

 Azoic rocks, 61. 



Bacterium termo, 108. 



Baffin's Bay discovered, 44. 



Baltic Sea, 6. 



Barentz's discoveries, 44. 



Barren reefs, 173. 



Beale's adventure with a Cuttle-fish, 452. 



Bed of coral, 128. 



Behring's Straits, 44. 



Berb'e Forskahli, 255. 



Berfchelot's representation of the capture of 

 a Cephalopod, 462. 



Biphora, 313. 



Birth of coralline larvae, 133. 



Bivalves, how united, 318. 



Blue minyade. 193. 



Bonitas, 595, 602. 



Bonpland's account of the Electrical Eel, 

 539. 



Boring Pholades, 326. 



Botrillus, 311. 



Branch of Virgularia magnified, 143. 



Branchial infusoria, 107. 



Breathing in Molluscs, ?05. 



Brooke's sounding apparatus, 5. 



Bryozoare Polyps, 134. Their organiza- 

 tion, 305. 



2 K 



