EXCAVATIONS AT DEWLISH. 217 



Sample C. Close to road. 



Buff chalk-sand and gravel. Small angular flints and 

 small flint-chips. 



Residue about 25 per cent., composed of quartz-grains and 

 many minute splinters of flint, sponge -spicules, and a 

 little glauconite. 

 Sample A. Transverse Section /. 



Fine white calcareous sand full of sponge-spicules, rare 

 glauconite grains, fragment of Pecten, entomostraca. 



No large grains excepting small chalk pebbles. 

 Sample B. Section I. 



Fine white chalk-sand full of sponge-spicules, some 

 glauconite grains. 

 Sample C. Section I. 



Pale buff calcareous sand, full of chalk-grains, sponge- 

 spicules, foraminifera and entomostraca, all apparently 

 from the Chalk. 



Residue (insoluble) about 50 per cent., mainly small sub-an- 

 gular quartz-grains, much glauconite, some silicious- 

 spicules 

 Sample D. Section I. 



Fine sandy gravel, angular flint, and grains of chalk, a 

 few splinters of flint, and large quartz-grains. Flints mostly 

 weathered white inside ; some polished. 



Fine material, residue about 30 per cent. Quartz-grains, 

 silicious-spicules, glauconite. 

 Sample E. Section I. 



Fine-grained rusty sand, full of sponge spicules, foram- 

 inifera and glauconite. 



Insoluble residue of minute sub-angular quartz-grains, 

 coated with iron-oxide, and numerous sponge-spicules not 

 so coated. The iron-coated sand suggests derivation from 

 the Upper Greensand. 

 Sample F. Section I. 



Grey dusty sand and fine gravel, small sub-angular flints, 

 some polished. Sand somewhat calcareous, residue of 

 small quartz-grains, flint-splinters, glauconite, sponge- 



