746 EAST COAST OP LABEADOE. 



A small round island, 100 feet high, lies northward, distant 2^ 

 miles from Three Brothers, and a rock, 20 feet high, bears 139°, 

 distant ^ mile from it. 



Sentinel rock, bearing 10°, distant 10 miles from Three Brothers, 

 is an isolated dark gray rock, about 80 feet high, steep on its north- 

 eastern side, sloping gTadnalW to its sollth^Yestern side, and appar- 

 ently bold-to. 



A long and narrow island with a broad summit. 400 feet high, near 

 the southwesteiii end. is situated sonthwestward, distant 3 miles from 

 Sentinel rock. 



Sonthwestward, distant 9 miles from Sentinel rock, is the north- 

 eastern end of an island, about 1^ miles across, with three summits, 

 each about 400 feet high. 



Two small white islets, about 70 feet high, are situated southwest- 

 ward, 2 miles from this island. 



Notch rock, bearing 281°, distant 3^ miles from Sentinel rock, is 

 about 60 feet high, and a remarkable gap in its southeastern part 

 shows on southwesterly bearings. 



Bearing 310°, distant 9 miles from Sentinel rock, are three islands 

 situated close to what is apparently the northeastern end of a large, 

 high island. 



Neither islands nor appearances of shoal water have been seen to 

 the eastward of any of the rocks and islands above described. 



Caution. — The coast northward of Nain has only been very 

 roughly examined and the charts are unreliable, and several un- 

 marked shoals are said to exist. Every precaution should therefore 

 be taken when navigating in its vicinity. 



Mount Tlioresby, situated westward about 7 miles from the 

 northern end of a large island west-northwestward of Notch rock, is 

 2,733 feet high ; its northwestern side rises steepW in three steps, and 

 there is a long smooth slope to the southeastward, terminating in a 

 steep fall to low land. 



It is said that iron ore occurs largely in mount Thoresby, as well as 

 the adjacent land. 



Port Manvers, northwestward of moimt Thoresby, is a safe and 

 commodious harbor; the entrance is about a mile wide between 

 Medusa bluff on the eastern side and Thalia point on the western side. 

 Numerous islands lie northeastward of the entrance, of which the 

 nearest are Manby, Bouverie, Saddle, and Trio islands. 



Nearly midway between the entrance points and about -I mile sea- 

 ward of a line joining them are Willis rocks, which arc above water. 

 The other rocks in the entrance, being of white appearance, show at 

 some distance. The water is so clear that the bottom with 8 fathoms 

 of water over it can be seen. A patch of rocks, which seldom breaks, 



