Water Supply of Kingston, Ont. 125 
It now became quite clear that a supply of pure water 
could be obtained by running out the suction pipe 2500 feet 
from the shore. 
CURRENTS. 
In order to complete their information the Waterworks 
Committee ordered experiments with floats so as to deter- 
mine the direction of the currents in and near the harbour. 
‘These experiments were made by the City Engineer, Mr. 
T. O. Bolger, the manager of the waterworks, Mr. W. 
Hewitt, and myselt. Professor Carr Harris, of the Royal 
Military College, made many valuable suggestions. The 
floats were made by weighting small 12 ft. scantling with 
bricks tied on at oneend. In some ¢ases floats of 24 ft. length 
were used in the deeper water. Without going into detail, 
I shall here give the conclusions arrived at after several 
weeks of careful observation. 
1. From the Asylum to near the point D, there is a _ 
steady current down the lake outside of a line averaging 
700 or 800 feet from the shore. 
2. Inside this line there is a variable eddy current up the 
lake. : 7 
3. The dividing line between the currents moves towards 
the shore with westerly, and away from it, with easterly 
winds, 
4. From a point near D the dividing line runs in a gene 
ral direction towards Cedar Island. It must often pass very 
near the crib (B), but its position is very much influenced 
by the direction and velocity of the wind. 
5. Between the dividing line and the shore, the water of 
the harbour is comparatively still. The feeble currents 
are largely controlled by the wind. In quite calm weather 
there is, however, near the waterworks, a slow current up 
the lake. On the whole, the harbour water may be con- 
sidered to be, in comparison with the lake water, still- 
water. 
These results explained the unexpected character of the 
water over the crib (B). This point is on the dividing line 
