182 
and the Thurstwell springs, augmented by a supply from Swinden. 
Tt was continued in use until 1874. From this date to the present, 
the reservoir has been of no service, in consequence partly of the 
increased leakage, and also through the coal being worked below 
the Reservoir.—After the coal workings were finished the Reser- 
voir was partly filled with water, to ascertain the extent of the 
leak, which was found to be 425,000 gallons in 24 hours. 
The reservoir is formed by constructing embankments on the 
north, south and west sides, the natural ground forming the east 
embankment. The embankments, and also the water area rest 
entirely upon the rock. The rock is the cause of leakage, the 
water percolating through, and beneath the embankments, par- 
ticularly on the north side. The repairs now being carried out 
consist of taking out the puddle trench on the north, and partly 
on the east and west embankments, sinking through the rock to 
the water-tight shale below, and reinstating the puddle. The 
capacity of the reservoir is 20 millions of gallons. When com- 
pleted its supply will be from Cant Clough, and the Thurstwell 
springs. 
The party then proceeded to view the extensive operations for 
the construction of Cant Clough Reservoir. The numerous and 
elaborate plans prepared in connection with the works in all their 
details were inspected at the office, and then a survey of the site 
and works was made. The site of this proposed reservoir is 
situated about 83 miles in a south easterly direction from the 
town of Burnley, and about one mile from the village of Hurst- 
wood. It will be formed by constructing an embankment from 
north to south across the Cant Clough stream. The length of 
the top bank will be about 870 yards, and the height 80 feet. 
The length of cross section through the centre of the embank- 
ment, from the inner to the outer toe, will be 165 yards, and the 
cubical contents of the embankment 300,000 yards. The inner 
slope will batter 3 to 1, and the outer slope 2} to 1. On the 
outside slope a benching or terrace will be formed, 30 feet 
vertical from the top, and 40 feet wide. The inside slope will 
be pitched from the foot to the top, a wall also running along 
the top of the embankment to prevent the water from blowing 
over the top bank during storms and strong winds, and thus 
prevent injury to the outer slopes. At the foot of the inside 
slope is what is technically termed a stone toe containing 20,000 
cubic yards of rubble stone. The puddle trench is 15 feet wide 
in the valley, being gradually reduced north and south to 5 feet 
at the extreme ends, the sides in all cases being vertical. The 
culvert from the inlet to the valve shaft is 6 feet diameter, and 
120 yards long, and from the valve shaft to the outlet 7 feet 
diameter and 80 yards long. The culvert will be used for the 
purpose of emptying the reservoir, and also for the purpose of 
