1863.] 



CTJRLEY GRAVEL OF LUDLOW, ETC. 





Fig. 1, 



■Geological Sketch-map of Ludlow. 



d ^^m- 



Alluvium. 

 I';] Low Level Gravel. 



High Level Gravel. 



Old Red Sandstone. 

 Downton Sandstone. 

 Upper Ludlow Beds. 



a. < The Compasses ' Inn. c. The Bull Ring. 



b. ' The Feathers ' Hotel, d. Ludlow Castle. 



A, B, C. The line of Section. 



water, eight or ten feet deep, near the edge of the shelving lake. The 

 current which carried down the gravel, &c, passed over the present 

 site of the Eiver Teme ; for a bed of fine blue clay lies at the bottom 

 of Old Street, and yellow clay below Frog Lane. The dam which 

 kept back the water of this lower lake was probably opposite to the 

 tanks at the Old Paper Mill. 



The average thickness of this low-level gravel is about 25 feet, 

 a thickness of 21 feet of which has been exposed by shafts and tun- 

 nelling for the main sewer. During the existence of this water, the 

 site of Ludlow appears to have been covered, save a narrow strip, 

 about 130 yards wide, along the present direction of Castle Street. 

 The water of this lake would be 70 feet deep at the bottom of 

 Corve Street, and 90 feet deep at the bottom of Old Street. 



In process of time, the rocks which formed its southern dam 

 having been worn through, the whole of this lake-water seems to 



VOL. XIX. PART I. N 



