647 



INDEX. 



*,* THE ITALICS ARE ILLUSTRATIONS. 



Acalephoe, or Sea Nettles, 163. 

 Acanlhopterygea, 621. 

 Acclimatising sponges, 73. 

 Acephalous Mollusca, 316. 

 Achatina zebra, 427. 

 Achatina zebra, 427. 

 Acrocladia mainmiUata, 275, 277. 

 Actinidae, 203. 

 Actinia dianthus, 211. 

 yEqiiorea violacea, 157. 

 yEquorea violacea, 163. 

 Agalma rubra, 1 35. Its graceful appear- 

 ance, ib. Its structure, ib. 

 Alcyonaria, 218. 

 Alcyonium digitatum, 240. 

 Allice Shad, 598. 



Alternation of generation, 169, 315. 

 Alveohna ovoidea, 82. 

 Alveolina ovoidea, 85. 

 Ambulacral appendages, 256. 

 Ainmodytes lancea, 604. 

 Amoeba diffluens, 77. 



,, princeps, 78- 

 Amoeba diffluens, 78. 



,, pi'tticeps, 78. 

 Anabas scandens, 629. 

 Analysis of sea water, 14, 16, 17, 18. 

 Anatomy of fishes, 527. 

 Anchovy (Engraulis), 603. 

 Antarctic Ocean, 3. Discoveries, 46. 

 Antipathidse, 172. 

 Apiocrinus rotundus, 264. 

 Aplysia depilans, 411. 

 Aplysia depilatis, 412. 



,, inca, 412. 



,, shell of, ^iz. 

 Apolemia contorta, 128. 



Apolemia contorta, 131, 132. 



Aporous Madrepores, 173. 



Aquarium, the, 59. 



Arctic Ocean, 2, 40. 



Argonauta, fables concerning it, 493. 

 Aristotle's description, 494. Oppian s 

 description, ib. His mistakes, ib. 

 Rumphius, 495. Real history, 49*). 

 Madame Power's experiments, 497. 

 Locomotive organs, ib. 



Argonauta argo, 495, 496. 

 ,, papyracea, 498. 



Argonauta argo, 498. 



„ papyracea, 498. 



Aristotle's Lantern, 279. 



Aiicidia microcosmus, 309. 

 „ pedunculata, 310. 



Ascidia mierocosmus, 309. 

 ,, pedunculata, 310. 



Ascidians, simple, social, and compo- 

 site, 309. 



Aspergillum vaginiferum, 332. 



Aipei gillum vaginiferum, 332. 



Asteracanthion glacialis, 258. 



Asterias aurantiaca, 256. 

 ,, rubens, 255. 



Asterias aurantiaca, 256. 

 ,, rubens, 255. 



Asteropkyton verrucosum, 272. 



Asterophyton verrucosum, 272. 



Astreopora punctifera, 188. 



Astreopora punctifera, 180. 



Atlantic Ocean, 2. 



Atlantic Ocean, Chart of, 6. 

 ,, ,, Section of, 8. 



Atmospheric currents, 27. 



Atolls, 191. 



