46 



MR. L. RICHARDSON ON THE RH^TIC OF [Feb. I9II, 



detail by Charles Moore, 1 of whose record an abbreviated edition 

 appears in the Geological Survey Memoir on ' The Lias of England 

 & Wales (Yorkshire excepted)'. 2 



The section (fig. 2, p. 44) will give some idea of all that can be 

 seen in the way of beds in the eastern side of the cutting. The 

 Grey and Tea-green Marls are not well exposed now; but the band 

 of white gypsum, erroneously identified by Moore as ' strontian,' 

 can be made out, as well as the 'thinly laminated grey marl' 

 of his record. 



It will perhaps be best to give here a statement of the beds that 

 are present in the inlier. Details of the Keuper marls and of the 

 Ehaetic beds, up to the topmost deposits of the Cotham Beds, were 

 derived from the cutting : the lowermost strata of the Langport 

 Beds are not exposed ; but the remaining beds are excellently seen 

 in the large Camel-Hill Quarry (No. 3 on the map, fig. 3, p. 44). 



Sequence of Deposits in the Sparkford Inlier. 



"122 



42 



121 



41 



120 



40 



119 



39 



118 



38 



117 



37 



116 



36 



115 



35 



114 



34 



■{ 





113 



33 



112 



32 



111 



31 



110 



30 



109 



29 



108 



28 



107 



27 



106 



26 



105 



25 



U04 



24 



o o 103 



^ jq lOz 

 ^ fc j to 

 8 SI 94 

 Og 93 



< 92 



xn L 



Camel-Hill Qtjaeey. 



Thickness in feet inches. 



' Sandrock ' Limestone, breaking up 



into peculiar oblong pieces 3J- 



Clay, blue and yellowish 1 



' Sandrock ': average 7 



Shale : 1 to 5 inches 3 



' Sandrock ' : 2 to 6 inches 4 



Shale : average 2 



' Sandrock ': to 6 inches 3 



Shale : average . . 4 



'Sandrock.' Bluish, fissile, having 

 peculiar tubular perforations filled 



with iron-oxide ; 2 to 8 inches ... 



Shale .._ 



' Slippery Bed ' Limestone 



Shales, yellowish 2 



'Sandrock' 1 



Shale : average 5 



' Sandrock '; to 4 inches 2 



Shale, hard 5 



'Sandrock' 8 



Shale : average 4 



Sandrock 4 



Shale, bluish 



Eight beds of ' Firestones ' (lime- 

 stones) with shale-partings 4 4 



Shale : average 1 



Limestone 1 



Caloceras Johnstoni (Sow.). 



C. johnstoni and Ostrea 

 liassica Strickland. 



2 Psiloceras planorbis (Sow.) . 

 8 



fi C C. johnstoni, Ps. 'planorbis, 

 \ Ostrea liassica, etc. 

 Psiloceras planorbis, etc. 



Madula pectinoides (Sow.). 

 Hemipedina I'adioles, etc. 

 Very fossiliferous. 



6 Volsella minima (Sow.). 



Few fossils. 



Ostrea liassica abundant. 



1 Q. J. G. S. vol. xxiii (1867) pp. 461-64. 



2 ' Jurassic Rocks of Britain ' vol. iii (1893) pp. 77-79. 



