GEOLOGICAL NOTES — MACDONALD. 300 
5.—MAGNETITIC. 
There are also deposits of magnetite sands in Sable Island. 
Attention was devoted to these long ago. Itis more than40 
years since I received specimens. The late Professor Howe in- 
cluded this sand in his collections at the International Exhibition 
of London, 1862. It corresponds with the sands of Cape Breton, 
Cape Rosier, and also No. 4, and is different from the auriferous- 
iaagnetic sand of Joggin Point. I never saw gold in any speci- 
men. Prof. Howe, in his analysis, found titanium. Any speci- 
mens that I have seen are less magnetic than that of Cape 
Breton. Mr. Macdonald has anew directed my attention to it by 
presenting to the Museum a specimen of what he collected during 
a recent visit to the Island. 
Sable Island is 95 miles south-east of Cape Canso, and may be 
underlaid by an extension of the rocks of either Nova Scotia or 
Cape Breton of any formation. There can be no doubt that its 
magnetic sands are of Archean extraction, and in all probability 
they are glacially transperens, and that from the coast of Labra- 
dor, where the Archean is like that of Cape Rosier, granite and 
garnetiferous and syenitic and magnetic. The Arctic current, 
with its ice freight, according to the Admiralty charts, passes 
along the south side of Sable Island bank, outside of the sound- 
ings. This may have been the agency employed in transporting 
the magnetic sand to Sable Island. 
Art. IV. — GrotocicaL Notes. By Srmon D. MAcponaLp,F.G.S. 
SABLE ISLAND. 
(Read January 9, 1882.) 
HAVING carefully examined the different points in the vicinity 
of the main station, where gold was said to have been found, and 
as yet being disappointed in not finding an opening among the 
hummocks that I could call an average section, showing the stra- 
tification as visible on a small scale in the several indentations 
along the shore, I turned eastward, feeling assured from the 
gradual ascending character of the Island in this direction, and i's 
curvature to the north-east, that I should yet find among the hills 
