416 



THE GEOLOGIST. 



PARTICULARS OF THE STRATA SUNK THROUGH AT COTMANHAY 

 COLLIERY, IN THE PARISH OF ILKESTON, IN THE COUNTY OF 

 DERBY. 



No. 



of 



Thickness 







or 



Thickness 





! of Strata. 



Name of Strata. 





of Strata. 



I^ame of Strata. 



Str. 



yds 



ft. 



in. 



1 





Str. 



yds. 



ft. 



in. 





J 



2 



0 



0 



Soil and clay. 





ov 







0 



1 







2 



uoai 



o 



-i 



0 



2 



6 



L oai. 





O i 



0 



1 



6 



lire clay. 



Q 

 O 



1 



0 



6 



Soft cluiich.. 





OrC/ 



1 



1 



0 



Strong stone clunch. Tub- 



A 



4 



0 



2 



6 



Brown stone. ^ 













bing corb. 



K 



0 



2 



I 



0 



oOIL 0111(1. 





33 



3 



1 



0 



Strong bind with ironstone. 



a 

 D 



0 



0 



3 



Ironstone. 





34 



0 



1 



0 



Craw stone. 



n 

 i 



2 



1 



0 



Stone bind. 





35 



0 



0 





Ironstone. 



Q 



O 



0 



1 



1 



Grey stone. 





36 



0 



2 



0 



Black shale with"] 



J 



0 



1 



8 



Stone bind. 













large balls of [ ^^^^^ 

 ironstone y rake 

 Stone (bottom | 

 ironstone). J 



1 n 



iU 



JL i 



7 

 1 



1 



0. 



8 

 6 



Soft soapy bind. 

 Soft bind witli black 

 bands of tlimironstone. 





37 



0 



0 



4 



1 9 



0 



2 



6 



Black shale. 





38 



0 



2 



2 



Black shale. 



1 ^5 



lo 



1 



0 



7 



Soft white bind. 





39 



0 



I 



6 



Uluncii. 



1 /L 

 i 4 



0 



1 



8 



J ay and coal. 



cn 



b 



'iV 



I 



2 



0 



Stone bind with ironstone. 



J. 0 



1 



1 



8 



Dark clunch. 





41 



0 



I 



2 



v^oai i^-tiii j. 



1 



i u 



0 



1 



1 



Stone. 



2 





0 



2 



6 



Strong stone clunch. 





2 



1 



0 



Stone bind with iron- 







3 



0 



6 



Stone. 











stone beds. 



) S 





0 



1 



0 



Clunch. 



18 



0 



0 



H 



Ironstone. (Whetstone 







0 



I 



4 



P^nl 



L-oai. 













'Z 





9 



n 

 u 



n 

 yj 



Stone clunch. 



19 



7 



2 



0 



Rrnjin ninn Tr'n'tn itati 

 Ul UaU. UlUU \\ILil ilUJl- 





Al 



5 



0 



0 



Stone and Cank. 











stone beds. 





48 



4 



0 



0 



Strong stone bind. 



20 



1 



0 



4 



Black bind. 





49 



0 



2 



6 



Main smut. 



21 



0 



0 



3 



Ironstone. 





50 



0 



0 



6 



Soft clunch. 



22 



12 



0 



0 



Broad black bind. 





51 



1 



2 



8 



Stone. 



23 



1 



2 



6 



Soft white bind. 





52 



3 



2 



6 



Strong broad bind. 



24 



1 



0 



2 



Black shale. 





53 



1 



0 



2 



j\Iain soft coal. 



25 



0 



2 



9 



White biud. 





54 



0 



0 



4 



Bat. 



26 



0 



0 



4 



Ironstone "I t> 

 Black shale I 

 Ironstone J 





55 



2 



0 



0 



Stony clunch. 



27 



1 



0 



2 





56 



1 



0 



0 



Dark stone. 



28 



0 



0 



4 





57 



11 



0 



0 



Strong broad bind with 



29 



0 



1 



6 



Bind and shale alter- 













small heds of ironstone. 











nately. J 





58 



1 



0 



4 



Hard Pothouse coal (main) . 



BEITISH ASSOCIATION MEETING AT CAMBEIDGE. 



OX BITUMINOUS SCHISTS* AND THEIR RELATION TO COAL. 



By Peofessoe D. T. Ansted, M.A., F.R.S. 



Eocks in Trbich naplitha, petroleum, rock oil, bitumen, asplialte, and 

 other mineral hydrocarbons are present in sufficient abundance to cha- 



* This term, " bituminous schists," is not altogether correct, as the minerals so called 

 do not contain bilumcn jjiopcrly so called. It is, however, in familiar use, aud to be 

 preferred to (lie term " jiyro-schist " suggested by Dr. Slerry Hunt, which is equally in- 

 correct, without ha\ iug the advantage of being familiar. 



