and some other Stratified Deposits in the North of Scotland. 325 



Copy of a Journal kept whilst boring for Coal at the Water of Brora. 



(Coal-pit now in use.) 





1810. 



1 



Oct. 23 



2 



31 



3 



Nov. 1 



4 



15 



5 



19 



6 



22 



7 



29 



8 





9 



30 



10 



Dec. 13 



Date. 



18 



20 



25 

 1811. 



Jan. 17 

 23 

 28 



Feb. 6 

 13 

 20 

 26 

 28 



Mar. 2 

 8 



April 1 

 17 

 18 

 20 

 23 



May 14 

 16 

 18 



29 



June 1 

 5 



Description of the Beds. 



Soft gray stone in this layer, containing ironstone balls 



Soft dark gray sandstone in thin layers, and stones as above . , . . 



Dark, very soft coal metal in thin layers, with partings of yellow pyrites 

 and water, which rises to the surface 



Dark gray stone in thin layers, with soft partings 



Dark hard stone with strong sulphureous smell 



Soft sandy stone, rather lighter coloured than the above 



Lightish coloured sandstone, containing marine petrifactions 



Very hard ironstone 



Hard gray clunch 



Light coloured metal stone, rather soft in boring 



Lightish coloured clayish strata, soft in boring and containing a conside- 

 rable portion of calcareous matter and marine petrifactions 



Ditto, still darker, containing more of the white spar ; sulphureous, ef- 

 fervesces briskly, but does not contain any slack after burning (calca- 

 reous) 



Ditto, light coloured 



Ditto, still lighter coloured than the above 



Ditto, much darker, containing white powdery matter 



Dark clunch, a clayish strata 



Ditto Ditto 



Very dark coal shale, rather soft in boring ... 



Ditto Ditto 



Ash-coloured metal stone (calcareous) 



Very hard ironstone 



Ash-coloured clunch and bind 



Dark bituminous shale, with soft partings 



Very hard close-textured sandstone (quartzose sandstone) .... 



Sandstone with blue streaks, soft in boring , . 



Very hard blue grit limestone, mixed with freestone 



Gray shivery sandstone, rather soft 



Sandstone, mixed with limestone, very hard in boring 



Ash. coloured metal stone, rather soft 



Hard caking coal (main seam) 



Black clunch, pavement of coal 



Hard splent coal 



Black burning shale, like Kannel coal 



Very hard stone 



Black shale 



Very hard stone 



Soft black shale, speckled with white powdery matter 



Hard black burning shale, came up in the auger in large pieces, very pro- 

 mising and not yet cut through 



Total depth bored . . . Feet 



Depth of 



each Bed. 



Ft. 



In. 



63 







18 



6 



2 







6 



10 



1 



8 



9 



7 



14 



lOi 







H 



2 



9 



2 6 



2 9 



4 







11 



10 



11 



2 



11 



8 



7 



11 



4 



10 



2 



7 



5 



11 



12 



6 







5 



5 



4 



7 



11 







8 



12 



9 



2 



3 







6 







7 



2 







3 



2 



2 







1 



4 



6 



7 



1 



2 



2 







2| 

 2 



4 2 



250 



Hi 



* No. 28. and 29. are Fossil Beds, and form the roof of the coal. 



