90 S7MPS0N : THRKI-: DEEP BORIXGS AT HALIFAX. 
Toeing obtained if the bore were carried down into the massive 
Kinderscout Grits at the base of the Grit series. 
It is of course difficult to say, and unwise to be dogmatic in 
any statement of opinion, but I am inchned to think that a 
good supply would not be obtained, and still less that any such 
supply would repay the heavy expense of a bore so deep. If 
the Grits of this dip slope are as consistent with the Survey 
averages throughout their whole depth as these borings appear 
to me to indicate, it would be necessary to go down 1,300 feet 
to tap the possible water supply of the Kinderscout Grits. 
The outcropping area of the Kinderscout Grits north of the 
Calder is on the flanks of Hebden Valley and Crimsworth 
Dean, and on the moorlands to the west of these valleys. Much 
of the water gathered by the rocks to the west must be caught 
by these two valleys, which largely intersect the beds and cut 
down to the Pendleside series below. Tliere is only a small 
surface outcrop on the easterly valley sides and hill slopes, too 
small in my opinion to give a gathering ground likely to furnish 
any considerable quantity of water. Neither does it appear 
likely that much water can get through from the beds which 
successively overlie the Kinderscout Grit, if the shales which 
part it from the next Sandrock above maintain anything like 
the thickness shown in the Survey section. 
I would express my thanks and indebtedness to the principals 
of the three firms for their uniform courtesy in allowing me 
access to their premises and operations at all times, and also to 
the operative engineers engaged in carrying out the work, for 
leave to inspect and compare their records with my notes, and 
particularly for their kindness in keeping me samples of every 
change in the character of the rock, without which, in the case 
of the chisel bore, careful records would have been almost im- 
possible. 
My thanks are also due to Mr. J. H. Howarth for help and 
advice in noting Messrs. Ramsden's boring. 
