— 102 ~ 



Latitude 19 degrees, 63 minutes,^ gouth o£ the Equator. 

 It is about 20 miles in a northerly direction from 

 Port Louis, Mauritius. From the northern part of 

 Mauritius, it is distant about 7 miles. 



About half way between Flat Island and Mauri- 

 tius lies another Island called Gunner's Quoin, or 

 Coin de Mire. This Island is about a mile in 

 circumference. It rises abruptly at its north-western 

 extremity to a bluff of an elevation of about 520 feet 

 above the sea. The bluff is a-n aqueous conglomerate 

 rock in which are imbedded shells and pieces of coral. 

 The rock forming the eastern part of the Island is 

 volcanic. It over-lies the eastern extremity of the 

 aqueous rocks. 



At about a quarter of a mile to the north of Flat 

 Island the Pigeon House Rock risen out of the sea to 

 an elevation of about from 150 feet to 200 above it. 

 The Pigeon House Rock is reported to have been 

 united to Flat Island by a ledge of rock, which was 

 exposed at low water. If this ledge ever existed, it 

 has been all swept away by the currents. There is a 

 deep channel now between this rock and Plat Island, 

 through which the waves run without breaking. 



Eastward of Flat Island, at a distance of about a 

 quarter of a mile, lies Gabriel Island. Its size is 

 about 1,170 yards long and 830 yards broad. 



It is of volcanic origin, but large blocks of coral 

 are strewn over its surface, from the level of the sea 

 to the height of 100 feet above it, which is the esti- 

 mated height above the sea of the heighest part of 

 the Island. This Island consists of three different 

 zones of terraces. The lowest of these lies at a height 

 of about from 40 to 50 feet ; the second at from 60 to 

 70 feet, and the, third at from 80 to 1 00 feet above 



