328 Canadian Record of Science. 
Nine volutions are preserved in the most perfect of these 
specimens, the slender apex of each being broken off. In 
the perfect shell there must have been at least ten and prob- 
ably as many as eleven volutions. The species is of 
considerable interest on account of its strikingly close 
similarity to some of the most typical Jurassic species of 
Pseudomelania. 
FUSISPIRA VENTRICOSA. 
Fusispira ventricosa, Hall. 1871. Twenty-fourth Rep. N.Y. St. Mus. 
Nat. Hist., p. 229, pl. viii, fig. 6. 
sf fe Whitfield. 1882. Geol. Wiscons., vol. rv, p. 245, 
pl. ix, fig, 2. 
a ee Miller. 1889, N. Am. Geol. and Palzont., p. 405 
fig. 676. 
Abundant at many of the limestone exposures on the 
western shore of Lake Winnipeg and on the islands in that 
lake. It has been collected by Mr. Weston in 1884 at 
Lower Fort Garry; at Bull’s Head, the Dog’s Head, Big 
Grindstone Point, Big and Elk Islands: by Mr. Tyrrell in 
1889, at Berens Island; by Messrs. Dowling and Lambe in 
1890, at Berens, Snake and Black Bear Islands; by Mr. 
Dowling in 1890 at Commissioners and Punk Islands; and 
by Mr. Lambe in the same year at the Dog’s Head. 
Orrawa, March 22nd, 1893. 
SomME MIscoNcEPTIONS CONCERNING ASBESTOS. 
By J. T. Donatp, M.A. 
(Abstract of a paper read before the Natural History Society, 
Montreal, Feb. 27th, 1893.) 
During the past decade the uses of asbestos have become 
widely extended, and been consequently brought to the know- 
ledge of the great majority of those who live within range 
of our industrial centres. As a result of the wide applica- 
tions of this substance and of the interest excited in the 
minds of many by a ‘‘stone”’ which may be teased out into 
“Pe ian te 
