68 Rev. 0. Fisher — The Coprolite Pits of Cambridgeshire. 



was a field on the south of the road between Haslingfield and Harlton, 

 just under the hill. 



I can scarcely doubt that the manner in which the trail descends 

 below its normal depth, at the place where the squeezing has 

 occurred, is an index of the pressure by which the effect has been 

 produced in the beds below. 



Fig. 1.— Scaled-inch to afoot. 



N, 



,* -*- i' «> 



,^ « » -- - 



(a) Warp. (6) Trail, (c) "White-clay." [d]. Phosphatic nodule bed. (e) Gault. 



The other instance of reduplication of the coprolite bed which 

 has come under my notice, occurred in a pit about a furlong distant, 

 north-west, from the last, and the section, when I first saw it, was as 

 shown below. 



W. Fig. 2.— Scale J-inch to a foot. E. 



■Z ^ — - <^ <=» 



»- — <a 



s^- 



6- ^ <■ 



^^^^i<;^!iim(^/f^w//y^// M>y/^^^^^ 



(«) Warp. (J) Trail, (c) False Phosphatic nodule bed. (rf) "White Clay " and Sandy Gravel 

 passing into Gault. (e) Phosphatic nodvde bed in its normal position. (/) Gault with 

 uneven surface. 



After a time the white clay intervening between the coprolite bed 

 became intermingled with Gault. I was not able to learn with cer- 

 tainty from the workmen whether there was any definite order of 

 superposition between the two, some of them afiirming that the 

 Gault was above, find others the white clay ; but my belief is, that 

 there was no definite order of superposition between the two, and I 

 saw portions of white clay entangled in the Gault, after it prevailed. 



This doubling of the bed of coprolites occupied an area of about 

 twenty-five yards in length by five yards in breadth at the widest 



