30 



ME. HENKY PEESTON ON A NEW 



[Feb. 1903, 



not often that suitable wells are sunk whence the exact formation 

 of the strata can be traced. The above-mentioned section, taken 

 through the wells, seems to reveal the fact that throughout past 

 ages, the outflowing water of the overflow-spring has carried away, 



Pig. 1. — Plan showing sites of iv ells. 



LINCOLNSHIRE LIMESTONE". 



PLAN 

 C = Caythorpe Station. 



[Scale : 2j inches = 1 inile.] 

 Fig. 2. — Section along tne line A B in jig. 1. 



SECTION THROUGH WELLS 

 AT CAYTHORPE. 



SECTION AB 



[Vertical scale : 330 feet = 1 inch.] 



Well ]S T o. 1 is 16 feet deep ; it touched Liassic clay at 16 feet, and its surface 



level is 301 feet above O.D. 

 Well No. 2 is 40 feet deep ; it touched clay at 30 feet, and its surface-level is 



325 feet above O.D. 

 Well No. 3 is 32 feet deep ; it touched clay at 31 feet, and its surface-level 



is 323 feet above O.D. 

 Well No. 4 is 32 feet deep ; it touched clay at 32 feet, and its surface-level is 



320 feet above O.D. 

 Well No. 5 is the boring above described, and its surface-level is 320 feet 



above O.D. 



not only the Northampton Sauds, and perhaps some of the lower beds 

 of limestone, but also much of the upper surface of the clay, and 

 the limestone has gradually settled down on to its new bed. Thus, 

 not only is a greater area of gathering-ground provided for the spring, 

 but at the same time the true thickness of the Liassic clay has been 

 hidden. 



