336 



THE CARBONIFEROUS SYSTEM. 



15. Laminated compact coal. 



16. 

 17. 





5) 

 11 



much mineral charcoal. 



18. Shaly coal, impressions of plants. 



The results of assays of these several samples are given in the 

 following table : — 



No. 



3. v-Good coal 

 4-) 



Carbon fixed. Ashes. 



Assays of Samples of Coal taken at distances of one foot in the 



Deep Seam. 



Volatile matter Volatile matter 

 by rapid coking, by slow coking. 



24-8 21-0 



25-2 

 ^28-4 

 Ironstone and coal 26 - 8 



-' > Coarse coal 



8. Good coal 



9. Coarse coal 



, 1 ' >■ Good coal 

 [-Coarse coal 



12 



13 



14 



15. 



16. 



18. 

 The 



Good coal 



Shale and coal 



25-2 

 239 

 27-5 

 20-5 

 20-4 

 22-4 

 22-1 

 20-4 

 22-3 

 20-5 

 20-1 

 23-9 

 22-9 

 219 

 19-9 

 211 



67-6 

 67-3 

 70-8 

 18-5 

 59-1 

 48-0 

 70-3 

 49-3 

 68-9 

 64-3 

 51-2 

 55-3 

 68-1 

 71-5 

 69-6 

 63-8 

 23-0 



11-4 



7-5 



5-3 



54-0 



20-4 



31-6 



7-3 



28-6 



10-7 



13-4 



28-3 



24-6 



8-0 



5-6 



8-5 



16-3 



55-9 



following 



summary of these two beds and the intervening 

 measures, from the observations of Mr Poole in sinking the first 

 engine pit at the Dalhousie Mine, gives at the same time an idea of 

 the gigantic development of workable coal at this place. 



Ft. in. 

 Surface clay ...... 82 



Shale and bands of ironstone alternate . 64 10 



Main Seam — Ft. 



Coarse coal ... 



Good coal 

 Ironstone 

 Good coal 

 Ironstone 

 Coarse coal 

 Ironstone 



5 







14 







7 

 



in. 

 2 

 

 6 

 4 

 4 

 7 

 4 



Carry forward, 28 3 73 



