272 W. H. Tivenhofel and W. H. Conine— The 



and English Head. On the apices of most of the head- 

 lands, this terrace is cut away, but on their sides there are 

 talus heaps overhung- by the cliff, and these rest on the 

 top of the terrace. It is probably the most continuous 

 terrace of the island. 



The 10 to 13-foot terrace is that on which most of the 

 moorland of the south shore is built, and its present vary- 

 ing height (16-17 feet) is largely due to the differential 

 accumulation of peat on the top. Over extensive 

 stretches of the south coast this terrace is several miles 

 wide and it is probably the mdest of the island. A 20- 

 foot terrace has been observed in many places, and also 



i^a^ 



Fig. 2. — Diagi-am of the ''reef" and the first and a higher terrace be- 

 tween West Point and English Bay. The top of the barrier is about 10 

 feet above high tide-level. The upper terrace is about 40 feet high. The 

 trimcated strata beneath the barrier make the floor of the lowest terrace 

 above sea-level; 



varies in height due to ditferential accumulation of peat. 

 The very high terraces are among those best shown and 

 they are also quite wide. On the north side they are gen- 

 erally fronted by a very steep slope, for instance, Macasty 

 Mountain is faced by a slope difficult to climb — ^landslides 

 having occurred upon it — and its summit is very flat and 

 carries gravel resembling that existing on the present 

 beach. The terrace here is 409 feet above sea-level. 



The land above the 442-foot terrace, the highest meas- 

 ured, is also very flat and of terrace-like aspect. Taking 

 observations as to heights and widths on these higher 

 areas was, however, so difficult that none Avas attempted, 

 as it was clear that any data that could be obtained would 



