40 MR. W. WHITAKEE ON SOME [Feb. I903, 



Thickness. Depth. 



Feet. Feet. 



pp. ^ -■ f Sand and gravel ■ 18 18 



L 'J \ Running sand and water 30 48 



[? Chillesford.] Blue clay 14 62 



( Grev ' blowing ' sand 117 170 



[Crag.] \ Yellow clay 20 199 



['Blowing 'sand 43 242 



[London Clay. Iron-pan, 4 J inches thick, 278 feet 



Clay.] down ; and another, 14 inches thick, 



16 feet lower pseptaria] 73 • 315 



For the following more detailed section, at Kessingland, I am 

 indebted to the Geological Survey. Should the Crag here be of a 

 thickness similar to that which has been proved at Lowestoft, it 

 would reach down to about 250 feet. 



Kessingland. Trial-well and boring. For public supply. In 

 field No. 270 of the Ordnance Survey 25-inch Map. 1899. 



Communicated by Mr. F. H. Anson, and from specimens noted 

 by Mr. Clement Reid, who has also classified the beds. 



About 70 feet above Ordnance- datum. Shaft 60 feet, the rest 

 being a boring 8 inches in diameter. 







Thickness. 



Depth 







Feet. 



Feet 



Soil, eai 



■th y loam 



13" 



n 



Boulder- 



' Yellow Boulder-Clay, with chalk 



Lead -coloured Boulder-Clay, with chalk . 



14* 



Clay. 



m 



28 





[ Fine-grained laminated sand, with mica ; 







Glacial. 



the bottom 6 inches being more ferru- 



8i 



36A 





Fine chalky sand 



U 



40" 



Probably 



Subangular gravel (flint, quartz, etc.) 



Brown gravelly sand 



20 



60 



Glacial. 



i 



60* 





Ferruginous sand and small stones 



10 



70| 



Chillesford 



Clay, 



16* feet. 



Ferruginous micaceous loam 



Grey micaceous loam 



2 



7* 



72-| 

 80 



Grey, more micaceous loam 



Grey micaceous loam, harder and sandy . 



5 



85 



o 



87 





Grey sand and si nail stones 



11 



98 



* 



Gravel (flint-pebble & subangular quartz) . 



1 



99 





Grey sand, with fragments of Mytilus ... 



31 



130 





Grey silty sand, with lAttorina littorea, 









Purpura lapillus, Tettina obliqua, and 









Cyprina island tea 



5 



135 



Crag. ■ 



Silty micaceous grey sand, with Tettina... 

 Grey sand, the bottom 7 feet with Mytilus 



13 



148 





and Tettina pr (Biennis (?).... 



13 



161 





Hard, greenish-grey, micaceous loam 



H 



162* 





Greenish-grey, micaceous, silty sand .. 



n 



164 





Grev silty sand, somewhat coarser, with a 









few shell-fragments 



16 



180 



A letter (of September 1900) from Messrs. Tilley, who were 

 called in after the work was finished, gives the following further 

 information : — The water-level was 61 feet down. From the deep 



