420 ON THE HESSLE BOULDER=-CLAY IN LINCOLNSHIRE. 
very fairly with the more recent and more accurately described 
boring at Fossdyke. 
The beds below the depth of 484 feet will have a more natural 
aspect if they are dissociated from the artificial grouping presented by 
the daily report; for it is clear that one and the same bed often 
enters into the report of two or more days’ progress. In the follow- 
ing, therefore, we have what appears to be the natural descending 
order of the strata said to have been met with in the last 88 feet :— 
feet. 
Shells, shingle, and [? in] dark clay .........-........ceseeeeee about 1 
Fine sharp sand.......coscess-ceseeceeeecsess sees eeeeceestonees more than 5 
Dark clay, with shells in the lower part .......... .... from 10 to 15 
Siantayalley, tabtindss, aol BlaiMlsh 5. scocoosssd cee gos0oedcsecodoa9saddacauoodbone: oF 
(Rovld (apparently weriygheardl)) Preearceseh- eee sneeeeee ern eee tect eeet 2 
Stones mixed with clay, shells and flint near the bottom _...... 193 
Stone, shells, and rock [? rocky layers] .............ccccsesceeeeeeees 18 
Dark @RA7 coaseotcacnovscsq090d¢00. capanacsose0r Lathilailio Seiowie beatene napoleon i 
IWihitelsandisercnes seeteremeaeaecoeecene steerer cert se ghegustue seapeee il 
(Ujreailoyere-l hive) Cea stila 250, 400000 6.0 cosbosoopocoHopasanqsonsoouNETbdonoboDOSDUGAOD 6 
88 
Any one reading the original account will see that the terms and ex- 
pressions employed are those of an ignorant writer; and, making 
allowance for this, it would seem quite possible that the beds above 
indicated may really be strata of a local and exceptional character 
in the upper part of the Oxford Clay. The junction of the Kimme- 
ridge and Oxford Clays in South Lincolnshire is concealed by the 
overlying fen-deposits, so that we have no means of knowing what 
beds may or may not be developed about their line of junction. 
Without further discussion of this matter, the following genera- 
lization of the section seems to me a more probable one than the in- 
terpretation proposed by Mr. Skertchly :— 
feet. 
Loose earth and silt Pen-beds .............ccescevnsectcsccceccsceree ves 24 
Hard earth, mixed with : 
stone and clay. \ plessle: Olay) Pie ar sagsvastyee seenccnee 26 
Clay and shells. | 
@layszandodintss) y soulder-clay in edceeaaeteeacecesseee estes Eee 140 
Clay and stones. J 
Dark clay and shells. 
Slate-coloured clay, with shells. $ Oolitic clays .........ss0ssss08+s- 294 
Dark clay and shells. 
Alternations of sand, clay,‘‘shingle,” | Beds in or above the Ox- 
“ stones,” and rock. fond Clayiente-tereeeeesecer 88 
572 
It will be noticed that I have ventured to insert the Hessle Clay. 
This is, of course, subject to future correction; but the terms used 
to describe the upper 26 feet of clay are different from those em- 
ployed afterwards, so that the depth of the Hessle Clay may be in- 
dicated here if the conjecture of its occurrence at Boston should prove 
to be correct. 
