4 List of Minerals and Organic Remains. 73 
Fibrous sulphate of strontian, of a white, or sky-blue co- 
lor, is imbedded in the limestone of Kingston, (U. C.) in 
balls from one to twelve inches in diameter—solitarily, or 
forming a confused aggregate with white calc. spar and cu- 
bic iron pyrites. This mineral is here in bundles, promis- 
cuously arranged, of diverging acicular fibres—usually 
closely compacted ; but now and then having angular in- 
terstices, and even forming a confused reticulation in very 
small fasciculi. 
The same fibre or prism is sometimes four.and six inch 
es long, but commonly much less. 
In June 1819 I discovered a small druse of this mineral in 
the limestone of the chasm of the Falls of Niagara. A few 
weeks afterwards, Dr. Morton of Philadelphia, met with 
another in the same place. . 
I have detected two druses of this species of strontian in 
the brown fine grained limestone of the narrowsof Lake 
Simcoe, towards the river Severn, which discharges into 
Lake Huron. It is in small groupes of diverging. slender 
fibres resting on white calc. spar and quartz crystals. ‘This 
limestone is horizontal, and is crowded with organic re- 
mains, especially terebratule, orthoceratites and asaph trilo- 
bites,—it is close to the olderrocks. Exactly this form of the 
fibrous variety occurs in the nodular masses of the Grand 
Manitouline, containing selenite. 
Muriate of Soda.—Springs of this salt have been dis- 
covered along the whole north shore of Lake Ontario. 
The first intimation of their existence is usually given by 
cattle. They are tolerably copious, and although very 
weak at the surface, are more concentrated below; where 
they are no longer diluted by rains and infiltrations from 
marshes. 
They occur in swamps based on Reraental limestone, 
containing product, orthoceratites and others of the more 
ancient fossils. 
The following is the situation on this lake, of the springs 
with which I am aquainted, but I confess not to have made 
sufficient inquiries on the subject hitherto. Besides many 
smaller salt licks, in the front of lot No. 19 in Concession 
Bay of the township of Murray, one mile and a half or two 
miles north west from Quinte Carrying place, there isa 
saline spring which discharges as much as a common pump. 
Vou. VIL. No. 1. 10 
