Beaches on Jslaitds in CJeori^uui Bay. — Conistoclc. 313 
extent of several thousand acres and rarely rise to a hight of 
over fifty or sixty feet above the water of the bay. The three 
islands so far examined, viz: — Tomahawk, Beausoleil (some- 
times called Prince William Henry) and Giant's Tomb, are 
shown on the accompanying- sketch (Fig. i ) in their relation to 
each other and to the adjacent mainland. 
On this sketch the locations on the islands of the beaches 
described in this article are indicated by the full heavy lines. 
The positions of the beaches on the mainland, plainly visible 
from the steamers on the bay, and described by Spencer and 
Taylor, are roughly indicated by dash and dot lines. 
The sketch was compiled from the Canadian Hydrographic 
Office chart No. 327 and the maps of the Department of Indian 
Affairs for Canada. 
Tomahawk island and the northern portion of Beausoleil 
are of the characteristic rocky formation and rise to a hight of 
about sixty feet. The scanty soil which is found in a few places 
is composed of the disintegrated Laurentian rock and vege- 
table remains. In marked contrast to these are Giant's Tomb 
and the southern portion of Beausoleil. These are sandy with 
sloping shores and are both marked by high hills of unstratified 
sand, gravel and boulders and are evidently of glacial origin. 
Beausoleil island, which was the first island examined, was 
visited several times. This island is about five miles long, the 
northern rocky portion being irregularly two miles each way, 
while the southern sandy part is about three miles north and 
south by less than a mile in width. This portion appears to be 
composed entirely of material derived from the two glacial hills 
which rise from near its middle, and was probably at one time 
a separate island, joined later to the northern part by material 
carried north by wave action and by the falling of the water 
level. 
The two hills on this island are of an irregular oval shape 
probably a little over a quarter of a mile long and with the 
longer axis bearing north twenty-five degrees east. The north- 
ern hill was found to be 105 feet (bar.) above the water at the 
highest point visited and the southern 84 feet (level and bar.). 
They are both composed of unstratified sand, cobbles and small 
boulders and have flat tops. , 
