SURF AROUND ISLANDS 171 



Figure 54. — Chart of No Man's Land, Mass. Soundings in fathoms. 



Martha's Vineyard, is usually sheltered enough from southerly swells 

 for landing, except in really heavy weather, although the island is 

 only about iy 2 miles, east and west, by about 1 mile, north and south, 

 with a very even shoreline, and without any offlying shoals or reefs 

 to break the seas. Similarly, when coaling from one steamer to 

 another was impossible in Cook Bay on the southeast side of Easter 

 Island off the coast of Chile in the third week of December 1904, 

 because of a heavy swell from the southwest, we found La Perouse 

 Bay on the northeast side so protected by Cape Roggewein on the 

 one hand and by North Cape on the other side, that the two steamers 

 could lie side by side in the open roadstead. 



A cove on the leeward side of even a small island may, indeed, 

 be perfectly sheltered if the shore line is broken up by a succession of 

 headlands, especially if there are offlying ledges or islets to interfere 

 with the wave pattern. The harbor on the east side of St. Pierre Island 

 off the south coast of Newfoundland (fig. 55) is an excellent example, 



