340 



INDEX. 



374; ii., 11, 62,63, 65, 66, 86, 89, 112, 

 192, 193, 197, 206, 208, 250, 252. 



Threshing in San Miguel, ii., 45. 



Tidal observations, i., 86. 



Tizard, Captain Thomas H., navigating 

 lieutenant, appointed to the " Challen- 

 ger," i., 24 ; his correction of thermome- 

 ters used for deep-sea temperatures, ii., 

 260. 



Tow-net, i., 70; ii., SO. 



Transparency of sea-water, i., 88. 



Traveling in Brazil, ii., 126. 



Trawls, and mode of trawling on board 

 the " Challenger," i., 68, 186 ; action of 

 the trawl, ii., 281. 



Triptera columella, i., 127. 



Tristan d'Acunha Islands, ii., 134; his- 

 torical notices, 134, 165; Tristan, de- 

 scriptive accounts of, 139-146; Inac- 

 cessible Island, history and description 

 of, 146-163; its occupation by Freder- 

 ick and Gustav Stoltenhoff, 150-162; 

 Nightingale Island, 163. 



Trochocifatluis coronahis, i., 250. 



Tropic-bird, ii., 228. 



Turtle caught at Bermudas (1609), i., 273. 



Turtle, common green, at Ascension Isl- 

 and, ii., 228. 



Tussock - grass at Tristan d'Acunha, ii., 

 164 ; Falkland Islands, 183, 185. 



U. 



Umhellularia Crrnenlandica, i., 149, 150. 

 Upland geese, Falkland Islands, ii., 179. 

 Urchins. (See Sea-urchins.) 



V. 



"Valve" sounding-lead, i., 62. 



Vegetation in the Atlantic, ii., 290. 



FeMa, i., 123. 



"Venus's flower-basket," i., 137. 



Vigo Bay, sounding and dredging, i., 112 ; 

 ii., 232. 



Villa Franca, San Miguel, ii., 45. 



Volcanic' debris over the bed of the At- 

 lantic, ii., 254. 



Volcanic Islands: the A9ores, ii., 25, 29, 

 46, 109 ; the Tristan d'Acunha group, 

 144, 149 ; Island of Ascension, 222. 



Volcanic mud and sand in the bed of the 

 Atlantic, i., 214. 



Volcano, Fogo, Cape Verde Islands, ii., 71. 



Vulture, Egyptian, ii., 69. 



W. 



Wallich, Dr., naturalist to the "Bull-dog" 

 sounding expedition, i., 19; on cocco- 

 liths, 209. 



Walsingham caves, Bermudas, i., 302. 



Watch -buoy, in current observations, i., 

 336. 



Water of the Atlantic ; " slip water-bot- 

 tle " and " stop-cock water-bottle," used 

 in the expedition, i., 47, 51-53, 178, 

 180. 



Water, total want of, in Bermudas, i., 277, 

 295 ; its scarcity in San Vicente ; wells 

 and water-carriers, ii., 70. 



Water -fall. Inaccessible Island, ii., 148, 

 149. 



Watson, Rev. R. B., his collection of the 

 land-shells of Madeira, i.,152. 



Wells in San Vicente, ii., 70. 



Whale {A'iphius), Falkland Islands, ii., 

 182. 



Whisky Bay, Heard Island, ii., 191. 



" Wide - awake " {Sterna fuliginosa) ; 

 " Wide-awake Fair," ii., 227. 



Wild, J. J., appointed secretary to the di- 

 rector of the scientific staff of the "Chal- 

 lenger," and artist, i., 26, 80. 



Willemoes-Suhm, Dr. Rudolf von, appoint- 

 ed on the scientific staff of the " Chal- 

 lenger," i., 26, 99 ; new species named 

 by him, i., 183, 243, 245 ; ii., 20, 21. 



IVillemoe.sia crucifer, i., 241. 



Willemcesia leptodadyla, i., 181. 



Williams, Sir Fenwick, of Kars, i., 130. 



Wilson, Hugh, C.E., his railway operations 

 in Brazil, ii., 123, 127,128. " 



Wind, force and direction of, table and 

 diagrams of, i., 158, 159. 



Wind-currents, ii., 280. 



Woodwardia radica/is, A9ores, ii., 40. 



X. 



Xij^hicantha, i., 222. 



Y. 



Yellow fever in Brazil, ii., 128. 



Z. 



Zoological observations proposed to the 



expedition, i., 96. 

 Zoophytes on the coral reefs, Bermudas, 



i., 283. 



THE END. 



