337 
sinkings then in progress at the back of Crisp’s farm, on the S. 
slopes of Lansdown; as several interesting sections have been 
since exposed a description of them may be valuable before all 
traces are obliterated by the filling in of the excavations, Two 
have been sunk in the same field as the Reservoir for the 
water works, between the latter and an Inferior Oolite quarry on 
the slope above. A third in a field adjoining, to the W. of 
the Reservoir, and somewhat lower down. All three are in the 
*“‘Midford Sands.” No. 1, that to the N.E. of Reservoir, has gone 
through the sands to the blue clay. No. 2, in the same field to 
the N.W., has only reached the base of the “Sand burrs.” 
No. 3 has just touched the top of the blue clay. 
WELL SINKING NEAR SpuRWAY’S RESERVOIR IN FIELDS AT 
THE BACK OF Cnrisp’s Farm, S. SLOPE oF LANSDOWN. 
No. 1 Sinking. : 
N.E. of and about 90 paces above Reservoir. 80ft. below 
bottom bed of Inferior Oolite now visible in quarry above. 
Thickness. Depth. 
Fr. In. Fr. In. 
1.—“ Brash ” surface wash oe 3 0 3.0 
2.—“ Midford Sands” and ‘‘Sand 
burrs ” . 15 0 18 0 
3.—Brown iron - shot " limestone, 
oolitic, with rounded pebbles, 
and patches of grey marly 
limestone at base. Highly 
fossiliferous, and resting on 
grey marl as ae UES 19. 4 
4.—Light blue clay, with band of blue 
dense rather micaeous lime- 
stone (4in.) near top FOALS. O 32 6 
No. “3” is a well marked bed, and may truly be called a 
“ Cephalopoda bed,” being full of Ammonites and Belemnites ‘ 
the following have been identified through the kindness of 
Messrs. Newton and H. B. Woodward, of the Geological Survey :— 
Ammonites communis and A. bifrons. 
Water was found on breaking through this latter bed. 
