230 APPENDIX. 



and from their position on a bank, the usual depth of which 

 is only 30 fathoms, I have not ventured to class them with 

 atolls, and hence have left them uncoloured. — Rowley Shoals : 

 these lie some way from the N.W. coast of Australia : accord- 

 ing to Captain King (Narrative of Survey, vol. i. p. 60), they 

 are of coral-formation. They rise abruptly from the sea, and 

 Captain King found no bottom with 170 fathoms close to them. 

 Three of them are crescent-shaped ; ' a third oval reef of 

 the same group is entirely submerged ' (Lyell, Principles of 

 Geolog., book iii. chap, xviii.) ; coloured blue. — Scottfs Reefs, 

 lying north of Eowley Shoals, are briefly described by Captain 

 Wickham (Naut. Mag., 1841, p. 440) as of great size, of a 

 circular form, and ' with smooth water within, forming pro- 

 bably a lagoon of great extent.' There is a break on the 

 western side, where there probably is an entrance : the water 

 is very deep off these reefs ; coloured blue. 



Proceeding westward along the great volcanic chain of the 

 East Indian or Malay Archipelago, Solor Strait is represented 

 as fringed in a chart published by Dalrymple from a Dutch 

 MS. ; as are parts of Flores, Adenara, and Solor. Horsburgh 

 speaks of coral growing on these shores, and therefore I have 

 no doubt that the reefs are of coral, and have coloured them 

 red. We hear from Horsburgh (vol. ii. p. 602) that a coral 

 flat bounds the shores of Sapy Bay. From the same autho- 

 rity it appears (p. 610) that reefs fringe the island of Timor- 

 Young, on the N. shore of Sumbawa ; and likewise (p. 600) 

 that Bally town in Lombock, is fronted by a reef, stretching 

 along the shore at the distance of a hundred fathoms, with 

 channels through it for boats ; these places, therefore, have 

 been coloured red. — Bally Island: in a Dutch MS. chart on a 

 large scale of Java, which was brought from that island by 

 Dr. Horsfield, who had the kindness to show it me at the 

 India House, its western, northern, and southern shores ap- 

 pear regularly fringed by a reef (see also Horsburgh, vol. ii. 

 p. 593) ; and as coral is found abundantly there, I have no 



