200 bulletin: museum of comparative zoology. 



Fig. 3. A part of the &ame Bank from New Providence as far as the Douglas Chan- 

 nel, on a larger scale than Fig. 2. 



Fig. 4. The west face of Crooked Island Bank, from the southern spit of Fortune 

 Island to Bird Hock, showing the disintegration of the lowlands of the 

 tanks, and the formation of lagoons and the line of soundings taken by 

 the " Wild Duck " to 300 fathoms. Reduced from Admiralty Chart 

 No. 393. 



Fig. 5. The southwestern edge of Exuma Sound, showing the formation of the outer 

 chains of cays from Great Exuma Island on the narrow shore plateau 

 bounded by the 100 fathom line, and the disintegration of the inner face 

 of Great and Little Exuma Islands to form the low cays, flats, shallows, 

 and sand bores on the adjoining parts of the bank. The dotted line indi- 

 cates the line of soundings taken by the "AVild Duck " to 206 fathoms. 

 Reduced from Ilydrographic Chart No. 20°. 



Fig. 6. The southern extremity of Long Island, showing the transition of tlie west- 

 ern face of the central part of the island into the bank flats, and the 

 breaking up of the west face of the southern promontory of Long Island 

 by the SaUna Flats. Keduced from Hydrographic Chart No. 26°. 



PLATE XI. 



Fig. 1. The Cays and Bores to the eastward of Exuma Island. Soundings in feet. 



Ilydrographic Chart No. 340. 

 Fig. 2. Clarence Harbor and the adjoining Cays and Bores. Soundings in feet. 



Ilydrographic Chart No. 2093. 

 Fig. 3. The northeastern extremity of Andros with the Joulter Cays and Bores. 



Soundings in fathoms. Hydrographic Chart No. 1496. 

 Fig. 4. Washerwoman's Cut Channel^southof Andros), leading from the Tongue of 



the Ocean to Hurricane Hole. Soundings in fathoms. Hydrographic 



Chart No. 2077. 

 Fig. 5. The Ragged Islands Cays on the southeastern extremity of the Great 



Baliama Bank. Soundings in feet. Hydrographic Charts Nos. 341, 1399. 

 Fig. 6. Russell and Royal Islands, on the northeastern extremity of the Great 



Bahama Bank. Soundings in fatlioms. Hydrographic Chart No. 2098. 

 Fig. 7. Green Turtle Cay, with the adjoining cays on the eastern face of Little 



Bahama Bank. Soundings in feet. Hydrographic Chart No. 398. 



PLATE XIL 



Fig. 1. The Channels between the Sand Bores leading from the southern extremity 

 of the Tongue of the Ocean on to the Bank. Hydrographic Chart 

 No. 2009. 



Fig. 2. The Beminis, Gun Cay, and the adjoining flats to the eastward. Hydro- 

 graphic Chart No. 1490. 



Fig. 3. The three Biglits dividing the Island of Andros to the south of Wide Opening. 

 Hydrographic Cliart No. 1406. 



Fig 4. Great Stirrup Cay and the Sand Bores to the west of Great Harbor, on the 

 northeastern point of the western shank of Great Bahama Bank. Hydro- 

 graphic Chart No. 1432. 

 The soundings in Figures 1-3 are in fathoms, those of Figure 4 in feet. 



