APPENDIX. 217 



the coast in this part is fringed by coral-reefs ; M. Lesson, 

 however, remarks that the coral is sickly ; coloured red. — 

 Waigiou. A considerable portion of the northern shores 

 of these islands is seen in the charts (on a large scale) in 

 Freycinet's Atlas to be fringed by coral-reefs. Forrest 

 (p. 21, Voyage to New Guinea) alludes to the coral-reefs 

 lining the heads of Piapis Bay ; and Horsburgh (vol. ii. p. 

 599, 4th edit), speaking of the islands in Dampier Strait, 

 says "sharp coral-rocks line their shores;" coloured red. — 

 In the sea north of these islands, we have Guedes (or 

 Freewill) or St. David's), which from the chart given to 

 the 4to edit, of Carteret's Voyage, must be an atoll. 

 Krusenstern says the islets are very low ; coloured blue. — 

 Carteret's Shoals, in 2 53' N., are described as circular, 

 with stony points showing all round, with deeper water in 

 the middle; coloured blue. — Aiou; the plan of this group, 

 given in the atlas of the voyage of the Astrolabe, shows 

 that it is an atoll ; and, from a chart in Forrest's Voyage, it 

 appears that there is twelve fathoms within the circular 

 reef; coloured blue. — The S.W. coast of New Guinea 

 appears to be low, muddy, and devoid of reefs. The Arru, 

 Timor-laut, and Tenimber groups have lately been examined 

 by Capt. Kolff, the MS. translation of which, by Mr. W. 

 Earl, I have been permitted to read, through the kindness 

 of Capt. Washington, R.N. These islands are mostly 

 rather low, and are surrounded by distant reefs (the Ki 

 Islands, however, are lofty, and, from Mr. Stanley's survey, 

 appear without reefs) ; the sea in some parts is shallow, in 

 others profoundly deep (as near Larrat). From the imper- 

 fection of the published charts, I have been unable to 

 decide to which class these reefs belong. From the 

 distance to which they extend from the land, where the sea 

 is very deep, I am strongly inclined to believe they ought 



