ON THE CIRCULATION OF UNDERGROUND WATERS. 369 
Ft.) pin. Ft. in. 
191 O Red marl : ther AU) 
200 0 Very hard sandstone 9 0 
203 0 Red marl 3 0 
210 0 Red sandstone . ¥ 70 
233 0 Yellow sandstone (water) 23. 0 
234 0 Red marl , ee) 
236 0 Sandstone 2 0 
237 O Red marl : : : PO) 
245 0 Sandstone, water pebbles 8 0 
250 O Red marl 5 A é 5 O 
278 0 Very hard sandstone (water) . 28 0 
282 0 Red marl : é ; : AO 
300 0 Sandstone c 2 : 18 0 
No..5. Boring details by Mr. Councillor AnpRuws, Coventry. 
Bored in 1874. 
Surface level, 16 feet above bottom of the tank, sunk within the tank, 
near the margin, at a point N. 30° W. from the centre. 
Ft. in. Ft. in. 
65 0 Marls 3 ‘ 5 é ; : =. 865" 70 
72 0 Sandstone . Bel 7%, AO 
79 O Marls ; : {+0 
100 0 Sandstone . 2k 70 
108 0 Marls 8 0 
134 0 Sandstone 26 0 
140 0 Maris ‘: 6 0 
160 0 Sandstone é 20 0 
173 O Maris 13 0 
176 O Sandstone 4 : : : B 2 1 40 
180 0 Marls . . : A . : ne a BO 
185 0 Sandstone 1 Oo 
188 0 Marls 3.0 
191 O Sandstone 3.0 
193 0 Marls 2 0 
200 0 Sandstone 7 0 
230 0 Marls 30 0 
251 0 Sandstone 21 0 
253 0 Marls ‘ : F P é 5 a), 
263 0 Sandstone 3 ; ; - 3 ee LOw 0 
266 0 Marls ‘ y F 3 i 130 
273 0 Sandstone * A ‘ f 4 ieee oO 
295 0 Yellow sandstone . 4 ‘ ; 5 22) 2 Op 
296 0 Marls B : P : > A eel ab 
306 0 Sandstone ‘ 2 5 x eee ne 
308 6 Maris a 3 5 F : con er be 
336 0 Sandstone : ‘ F AL Ay" pee y omit 
350 0 Marls : : ; “ . lt (oO 
368 0 Sandstone 4 : ei oe eer o 
378 O Marls A 5 S i : seg 
426 0 White sandstone, possibly Coal-measures 48 0 
Borings, 75 feet in depth, all carried from points within the tank, 
hear its margin, due east from the centre, and N. 37° W. 
Before No. 5 was bored the total supply was 600,000 gallons per day ; 
the new work brought it up to 760,000 gallons a day. 
The new well is 199 feet to the N.N.W. of the tank, and is 50 feet in 
depth ; the water, rising in it by artesian pressure, is delivered into an 
iron pipe of 2 feet external diameter (18 inches interior), placed in 
mS Meg at a depth of 22 feet from the surface, the latter being 267:30 feet 
F BB 
