GEOLOGY OF CAPE BRETON.—GILPIN. 219 
He compared the water to that of St. Catherines, Ancaster 
and Whitby, Ontario. 
Mr. Fletcher, in his report on Richmond County, states that 
salt and sulphur springs are found on Rabbit Island, at Landry 
Lake, MecMaster’s Mill, Greenville, River Dennys, and River 
Tilliard. A sample of the McMaster’s Mill Spring gave Mr. 
Hoffman, Chemist of the Survey, in 1000 parts :— 
BASES. 
HSOUASSIAG coo8e) 5 ete Sceat saved oo s-< os Trace. 
SOC Ee eee ae Sree Very large quantity. 
PERC Wa es ede a2 Sage aad es Small quantity. 
PUP TICS Ae Ne aterains apa cch aieck <5, Bua. ose' Very smal] quantity. 
MET OUS ORIGG. < si5 5. 2 create ope Small quantity. 
ACIDS. 
SLL MMIC ANCID 2, 05s ols hires ate Rather large quantity. 
Bbasphorie Acid’ a... 65.8252. Trace. 
@acoomie Acids. cere ese! Rather small quantity. 
ONIMIE co scs east aisle Sate he ool Very large quantity. 
Neither bromine or iodine were detected. 
Iron Ore. Clay Iron Stone. This ore is frequently met in 
the coal measures, in thin beds and layers of nodules, seldom, 
however, in deposits exceeding a thickness of a few inches 
This ore of iron forms the basis of the cheap pig iron of Great 
Britain, for it is frequently found so’closely associated with the 
coal beds, that it is extracted at the one operation, and hoisted 
through the same shaft. When the coal is of good coking 
quality it is evident that cheap pig iron can be easily made. 
So far the sections of the coal measures exposed in Cape 
Breton have not shown this ore in beds thick enough to be of 
economic value. But asa demand for it has not yet risen its 
presence may frequently have been overlooked. Such was the 
case with the celebrated “black band,” a variety of this ore, 
which, neglected for many years, long formed the basis of the 
great iron industry of Scotland. 
Some years agol noticed the occurrence of the black band 
