OP THE N.W., MrDL.iXD, AND EASTERN COUNTIES. 



183 



This deposit I have hitherto been led to regard as a southerly con- 

 tinuation of the Lower Boulder-clay of Lancashire, Cheshire, &c. 

 (see my former paper, and the concluding part of this paper). 



Drift- 



around Nuneaton, Coventry, Kenilworth, and 

 Leamington. 



In this area the drift-matrix consists of redistributed local shale, 

 clay, or marl belonging to the Triassic, Permian, or Carboniferous 

 formations. The stones, in addition to quartzose and other pebbles, 

 consist of flints, a few chalk fragments, and erratics from the Pennine 

 hills, Charnwood forest, HartshiU, and fragments or fossils of Jurassic 

 rocks. These erratics (which chieiiy came from the north and east) are 

 commonly imbedded in what is locally called " top clay," of a brown or 

 red colour, which graduates downwards into underlying marl, shale, 

 &c. This clay contains chalk flints (rather fitfully distributed, but 

 generally very little chalk debris. In one of the Kenilworth gravel- 

 pits the redeposited Triassic pebbles, intermixed with large angnlar 

 chalk flints and coal-dust, graduate downwards into a pell-mell local 

 boulder-loam, which is probably the equivalent of the Wolverhampton 

 and Stafl'ord Boulder-clay, ^t Lillington, near Leamington (in 

 1865), the red marl, with a few stones near its surface, was overlain 

 by a mass of stratified fine gravel, consisting of Triassic pebbles, 

 Gn/phites, &c., above which there was a considerable thickness of 

 obliquely laminated fine sand, surmounted by 2 feet of clay with 

 pebbles (see fig. 2). In 1878 no section was exposed lower down 



Fig. 2. — Section at Lillington, near Leamington. 



A. Compact clay. 

 C. Fine gravel. 



B. Laminated Sand. 

 D. Eed marl. 



than the fine sand. At the Stoke-Heath clay-pits, near Coventry, 

 the clay (which contained a large boulder, probably from Charnwood 

 forest) here and there graduated into gravel on the same horizon, 

 and contained a few (but only a few) chalk-f]-agments and chalk- 

 flints. Around Nuneaton the clay (with "trap " boulders) contained 

 many flint chips and small Triassic pebbles, but scarcely any chalk; 

 and the specimens of the clay I brought away with me did not 

 efi'crvesce with ordinary tests. Xear Ilugby railway-station (March 

 1870) the matrix of the drift seemed to be locally derived clay, chiefly 



