1853.] DAWSON AND POOLE ALBION COAL. 47 



Note. — A specimen of the main coal, showing its entire thick- 

 ness, has lately been extracted by Mr. Poole for the New York 

 Exhibition, and enables me to add the following detailed section of 

 this great bed : — ft in 



1. Roof- shale: vegetable fragments and attached Spiror- 



bis (in specimen) 3 



2. CoaZ, with shaly bands 6^ 



3. Coal, laminated; layers of mineral charcoal and bright 



coal; band of ironstone balls in bottom 2 



4. CoaZjfine, cubical, and laminated; much mineral charcoal 3 2 

 6. Carbonaceous shale and ironstone, with layer of coarse 



coal (" holeing-stone "). Remains of large fishes and 

 coprolites. This bed varies much in thickness 4i 



6. Coal, laminated and cubical, coarser towards bottom ,. 9 3 



7. Ironstone and carbonaceous shale, with coaly layers and 



trunks o{ Lepidodendron, Ulodendron, Siffillaria, Stiff- 

 maria, &c., all prostrate 8 



8. Coal, laminated as in No. 6, a line of ironstone balls in 



bottom 1 2 



9. Coal, laminated and cubical, a few small ironstone 



balls. Many minute spines in this and underlying 



coal 6 7 



10. Ironstone and pyrites 3 



11. CoaZ, laminated and cubical, as above - 10 3 



12. CoaZ, coarse layers of bituminous shale and pyrites ... 1 



13. CoaZ, laminated, with a fossil trunk in pyrites 2 1 



14. Coal, laminated and cubical, with layers of shale, pass- 



ing downward into black slicken-sided underclay with 



coaly bands 2 3 



15. Underclay (to bottom of specimen) 10 



Thickness perpendicular to horizon... 40 8 

 Vertical thickness 38 6 



Journals q/ Exploratory Works at Me Albion Mines, Pictou, 

 Nova Scotia. By Henry Poole, Esq. 



Journal of Metals passed through in sinking " Trial Pits" on the 

 Crop of the "Main Seam" of Coal at the Albion Mines to 

 explain the Numbers marked on the General Plan*. 



\*This Plan of the Trial Pits, on a scale of 5 chains to 1 inch, presented 

 by Mr. Poole, is in the Society'' s Library.^ 



No. 3. 



feet in. 



Surface clay 6 



Good coal, with large fissures 



yielding water 7 



No. 2. 



feet in 



Surface clay 4 



Coal with clay, mixed 5 2 



Good coal 6 4 



Ironstone 6 



Good coal 9 



Bat and coal 4 6 



Yields gas. Total... 29 6 



Total... 13 



No. 4. 



Surface clay 



Top of coal regular. 



