136 ROYAL SOCIETY OF CANADA 
Wright’s Nubble, have been totally removed? (Fig. 14). That this 
process is still going on is shown by the fact that every year the light- 
keeper notes some backward movement of the southern bluff, and also 
by the fact that the site of a well, within twenty years surrounded by 
the upland and of some use in wet times, is now marked by a ring of 
stones on the rocky beach several feet from the nearest upland (Fig. 14). 
Since the soil of the island extended so far beyond its present limits 
within historic times, it is a natural inference that in yet earlier 
pericds it extended still farther, and covered the neighbouring ledges, 
not only those on the south, but those on the north and west as well; 
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Fic. 6.—The four principal maps of Dochet Island reduced to the same scale 
and superposed. 
but it is unlikely that it ever extended, as locally often stated, to include 
Little Dochet Island, for there is a deep-water channel between. Now, 
a continuous washing away of an island after this manner is known by 
geologists to be possible onlv where the coast is sinking beneath the sea, 
and of such a sinking in-this region there is much other evidence.? 
The rate of the subsidence is not known, but it is probably between 
one and two feet a century. The rocky base of the island, doubtless, 
stood five or six feet higher above the tide in Champlain’s time than 
now; and in still earlier times it was vet higher, so that all of the 

1 The removal is not wholly natural, for prior to 1865 much sand was 
removed to the mainland for building purposes, though in an amount incon- 
siderable in comparison with that which has been washed away. 
2 Summarized in a note by the present writer in the Bulletin of the Natural 
History Society of New Brunswick, No. XIX., 1901, 339 It is of interest to 
note that one of the pieces of evidences cited in that article is derived from 
this island, namely,—on Wright’s map (Fig. 12) a certain ledge is described 
as “somewhat green at its top,” implying that it then bore vegetation, whereas 
now it is bare of vegetation, and apparently overwashed by the highest tides. 
