APPENDIX. 227 



thought myself authorised to colour them. The N.E. 

 point of Borneo, where the water is very shoal, is con- 

 nected with Magindanao by a chain of islands called the 

 Sooloo Archipelago, about which I have been able to obtain 

 very little information ; Pangooiaran, although ten miles 

 long, entirely consists of a bed of coral-rock (Notices of E. 

 Indian Arch., p. 58) : I believe from Horsburgh that the 

 island is low; not coloured. — Tahow bank, in some old 

 charts, appears like a submerged atoll; not coloured* 

 Forrest {Voyage, p. 21) states that one of the islands near 

 Sooloo is surrounded by coral-rocks ; but there is no distant 

 reef. Near the S. end of Basselan, some of the islets in 

 the chart accompanying Forrest's Voyage, appear fringed 

 with reefs; hence I have coloured, though unwillingly, 

 parts of the Sooloo group red. The sea between Sooloo 

 and Palawan, near the shoal coast of Borneo, is interspersed 

 with irregular reefs and shoal patches ; not coloured : but 

 in the northern part of this sea, there are two low islets, 

 Cagayanes and Cavilli, surrounded by extensive coral-reefs ; 

 the- breakers round the latter (Horsburgh, vol. ii. p. 513) 

 extend five or six miles from a sandbank, which forms the 

 only dry part; these breakers are steep to outside; there 

 appears to be an opening through them on one side, with 

 four or five fathoms within: from this description, I 

 strongly suspect that Cavilli ought to be considered an 

 atoll ; but, as I have not seen any chart of it, on even a 

 moderately large scale, I have not coloured it. The islets 

 off the northern end of Palawan, are in the same case as 

 those off the southern end, namely, they are fringed by 

 reefs, some way distant from the shore, but the water is 

 exceedingly shallow; uncoloured. The western shore of 

 Palawan will be treated of under the head of China Sea. 

 Philippine Archipelago. — A chart on a large scale of 



