Note on Magnesite. 187 
NotTE ON MAGNESITE FROM NEAR Buack LAKE, QUE. 
By J. T. Donaxp, M.A. 
(Read before the Natural History Society, Jan. 25th, 1892.) 
In the “ Annotated list of the minerals occurring in Can- 
ada,” read before the Royal Society of Canada in May, 1889, 
Mr. G. Christian Hoffmann states that Magnesite “‘ has so far 
only been met with in rock masses forming in association 
with serpentine, dolomite and steatite, beds in the townships 
of Sutton and Bolton, Brome County, Province of Quebec.” 
The object of this note is to place on record the occur- 
rence of this mineral in characteristic crystals as incrusta- 
tions on masses of serpentine on one or more of the lots 
known as numbers 24, 25, 26, Range A, Coleraine, Megan- 
tic County, Que. Since finding it in this locality, in the 
autumn of the year 1890, the writer has been on the look 
out for it at numerous other points in the Asbestos area, 
but as yet has not found it except in the locality above 
mentioned. Calcite, however, is quite common as an 
incrustation on the Serpentine throughout the area in 
which the asbestos is mined. 
THE WATERS OF TWO ARTESIAN WELLS IN THE 
EASTERN Part oF THE OiTy oF MONTREAL. 
By J. T. Donatp, M.A. 
(Read before the Natural History Society, Jan. 25th, 1892.) 
One of the wells in question is on the property of 
Messrs. R. White & Co. on the corner of Craig and Beandry 
Streets, the other is on the property of Messrs. M. Laing 
& Sons on the corner of St. Catherine and Parthenais 
Streets. Strictly speaking the latter is not entitled to be 
called an artesian well, as it yields water only by pumping. 
Mr. P. Laing informs me the water is ‘‘delivered by a pump 
having 36 inch stroke, and this without forcing throws 
twenty-five gallons per minute, and this pump has been at 
work for weeks without the slightest falling off in supply.” 
Messrs. R. White & Co. find that their well flows at the 
rate of thirty gallons per minute. It is however the inten- 
