GOEEINGE OE GETTYSBUEG BANK, ETC. 606 



11 miles to the eastward. At 20 miles distant, in a north-westerly direc- 

 tion, a depth of 2,750 fathoms was found, and in a north-easterly direction, 

 1,640 fathoms. 



The Tide was observed in H.M.S. Salamis, when at anchor on the shoal 

 ground, on March 4th (spring tides), to set regularly N.B. and S.W., with 

 a maximum velocity of about 1^ knot. 



On June 26th, 1888, Captain Meister, of the Swedish frigate Vcmadis, 

 when in lat. 36° 32^' N., long. 11° 37' W., found 32 fathoms on this bank, 

 bottom of small black lava stones, white and red coral, and coarse black 

 sand. In 36° 34^' N., 11° 38i' W., he found 120 fathoms, coarse clean 

 coral sand, mixed with fine black lava, or black sand, and shells. Heavy 

 overfalls were noticed on the bank. The above soundings indicate that 

 this bank may be of volcanic origin. 



JOSEPHINE BANK, lat. 36° 40' N., long. 14° 10' W. 



This is a bank of 82 to 90 fathoms, discovered by the Swedish exploring 

 vessel Josephine, in 1869. It lies nearly on the parallel of Gettysburg 

 Bank, but 2^° farther to the westward. 



SEINE BANK, lat. 33° 42' N., long. 14° 18' W. 



In 1882, the telegraph steamer Seine, in carrying a line of soundings 

 between Lisbon and Madeira, struck bottom on a bank about 7 mile^ in 

 extent, rising suddenly from depths of 2,200 fathoms to 100 and 118 

 fathoms, rock and coral. The least depth found was 81 fathoms, in the 

 above position, about 110 miles E.N.E. (true) from Porto Santo. 



Falcon Eock, to the Northward of Porto Santo. 



This sunken rock, probably identical with the Eight Stones of the old 

 charts, is described on page .578. 



DACIA BANK, lat. 31° 15' N., long. 13° 14|' W. 



This bank, reported by the telegraph steamer Dacia, in 1883, was ex- 

 amined by the French war-vessel Orne, in April, 1887, when soundings of 

 38, 12^, and 60 fathoms, sand and muddy gravel, were obtained on it, 12^ 

 fathoms being found in lat. 31° 15' 5" N., long. 13° 40' 20" W., or about 

 100 miles northward of Alegranza, one of the Canary Islands. 



CONCEPCION BANK, lat. 29° 55' N., long. 12° 55' W. 



This is a bank lying about 40 miles north-eastward from Alegranza 

 Island, on which a least depth of 84 fathoms was found by the telegraph 

 steamer International, in 1883. There are soundings from 800 to 1,500 

 fathoms close around it, but about midway between it and Dacia Bank 

 the depth is only 583 fathoms. 



