No. 3.] SPENCER — PALEOZOIC GEOLOGY. 163 



in beds of similar horizon at Bcamsville that the galena was 

 found and worked many years ago. The horizon of the beds is 

 from 130 to 145 feet above the base of the Niagara in the neigh- 

 bourhood of Hamilton. 



In numerous places mineral waters are found. These are of 

 two classes — alkaline and sulphuretted waters. Of the former 

 class there are numerous springs along the sides of the escarpment. 

 Similar waters have also been obtained in various wells that have 

 been bored to a considerable depth. One of these wells was 

 bored nearly, or perhaps, quite through the Medina shales at 

 the Ontario Oil Refinery, east of Hamilton. The water of thiw 

 place, I analysed in 1871. 



Sodium chloride , . 2-28 



Magnesium chloride 0-60 



Calcium Chloride 1-67 



Potassium chloride a trace 



Calcium sulphate 0-20 



Residue -10 



Water 94-90 



99-75 



Another of these mineral waters was obtained at a depth of 

 1009 feet in Cambro-Silurian beds from the Artesian well at the 

 Royal Hotel, Hamilton. The following analysis was made in 

 1870: 



Sodium chloride 6-3711 



Magnesium chloride 1-2723 



Potassium chloride traces 



Calcium chloride 5-2723 



Calcium Sulphate -1167 



Silica, iron, carbonic acid, -v 



iodine and bromine | t^^^es 



Water 86-9676 



100-0000 



Unfortunately the record of this well was burned, although a 

 little of the saline water still remains in my possession. 



Of the second class — sulphuretted waters — we find a few 

 springs, the principal being at Mount Albion, and at Sulphur 

 Springs, Ancaster. One of the old springs near Mount Albion 

 is now dried up. From otliers in this place the supply of gas 

 has continued to be evolved for many years, and three jets of this 

 gas, essentially sulphuretted hydrogen, are used to light Albion 



