INDEX. 



AAK 



AAR glacier, formation and dissolu- 

 tion of the, 75 

 Acalephae, 348. See Jelly-fishes 

 Acephala, their organisation, 299 



— their food, 305 



— their enemies, 305, 306 

 Acorn-shell, the, 244 

 Actinias, 361 

 Actinozoa, 363 

 Adriatic, depth of the, 8 



— tides of the, 43 



Africa, length of coast-line of, 4 



— circumnavigated by the Phoenicians, 



444 



— Hanno's discoveries on the west coast 



of, 444 



Agar-agar, or artificial edible birds' - 

 nests of Java, 402 



Agricola, Julius, sails round Scotland, 

 422 



Air-bladder of fishes, 189 



Air-currents. See "Winds 



Albatross, 163 



Albion, New, discovery of, 467 



Alcyonarians, 363 



Alexander the Great, maritime dis- 

 coveries resulting from the conquests 

 of, 447 



Alexandria, the Pharus or lighthouse 

 of, 89 



Algse, 39*0 



— changes produced by, in the colour of 



the sea, 19 



— Russian official collecting, 392 

 Alligators, 172 



AmaJfi, maritime trade of, 449 



— decline of, 449 



Amazon river, tides of the, 43 



quantity of water which it pours 



into the ocean, 75 



r discovery of the river, 460 



America, length of coast-line of, 4 



— salmon of Russian America, 221 



— discovery of, by Columbus, 457 



— account of early navigation along 



the shores of, 457 

 Amerigo Vespucci, his discoveries, 460 



BAT 



Ammodyte, or launce, 230 

 Ammonites, 437 

 Amoebae, 379 



— simplicity of their structure, 3o0 

 Anabas of the dry tanks, 193 

 Anchovy, 214 



Angler, or sea-devil, 203 

 Annelides, marine, 262 



— general remarks on the, 262 



— their beauty, 263 



— their food, 264 



— their enemies, 265 



— tubicole, 266 



Anson, Commodore, his maritime dis- 

 coveries, 483 



Aphrodita, or sea-mouse, 264 



Arab commerce and maritime discovery; 

 452 



Arctic discovery, 474, 496 



— winter passed by Barentz, 478 

 Argand, his improvement in marine- 

 illumination, 90 



Argonaut, 280 



Argus, Scotch or Shetland, 333 

 Ascidia mammillata, 322 

 Asia, length of coast-line of, 4 

 Asteriae, 335 

 Astraea, 373 



Atlantic Ocean, depth of the, according 

 to Maury, 7 



temperature of the, 14 



fury of the Atlantic surge, 28, 29_ 



enormous fucus banks, or floating 



meadows of the, 397 

 Atolls, or lagoon islands, 374 

 Auburn, site of the village of, 29 

 Auks, 151, 168 

 Australia, length of coast-line of, 4 



— discoveries in, 480, 486 

 Avosets, 143, 144, 146 

 Azores, discovery of the, 456 



BACK'S arctic voyages, 507 

 Baffin, his maritime discoveries, 

 483 

 Baffin's Bay, discovery of, 483 



