80 SIMPSON: THREE DEEP BOUIXOS AT HALIFAX. 
16. 
Dark blue-grey Shales, with nodular 
ft. 
Total 
depth from 
.surface, 
ft. in. 
Ironstone bands 
50 
0 
587 
0 
17. 
Coal 
0 
4 
18. 
Fireclay 
4 
8 
592 
0 
19. 
Shale 
3 
0 
o 
u 
20. 
Coarse Sandrock, with thin carbonace- 
ous lines and impressions . . 
6 
0 
A 
U 
21. 
Hard, quartzitic Sandrock 
3 
0 
U 
22. 
Fireclay, with plant markings. . 
A line impression of Cydopttrh ohhita was 
revea^led bv tX broken section of tlie core 
here. 
0 
6 
23. 
Very hard, white, quartzitic Rock, very 
micaceous in parts . . 
12 
6 
617 
0 
24. 
Hard, dark Shales with liard, white mi- 
caceous Sandrock bands 
18 
0 
635 
0 
Here water tests were made, and it was found that with 
the pipe at 200 feet from the surface the supply did not fall 
with continuous pumping below that level, and that some 
34,000 gallons could be obtained daily ; consequently boring- 
operations ceased. 
Messrs. Hollingrake & Clegg's premises, in Miall Street, 
are on about the 700 feet datum, higher the dip slope of 
the same beds, about a mile to the north-west of Messrs. 
Ramsden's, and about 600 yards or so due north of Messrs. 
Ward's. 
Here there was an existing well 6 feet in diameter, sunk to 
a depth of 283 feet, and boring was undertaken to increase the 
water supply. 
Work was begun in September, 1901, discontinued owing 
to the pumps being out of order in October, and recommenced 
in July, 1902, with a bore 9| inches in diameter, which was re- 
duced at 477 feet from the surface to 8^ inches and gave a core 
as follows : — 
