3 88 SCIENCE PROGRESS 



Proximate Analysis. 



Volatile matters 

 Fixed Carbon . 

 Sulphur . 

 Ash . 



Ultimate Analysis. 



Carbon 78-03 per cent. 



Hydrogen 5-44 



Oxygen 4-67 



Nitrogen '84 



Sulphur -76 



Ash 1026 



ioo'oo per cent. 



Evaporative power in lb. water from and at 212 F. . . . 1473 138 



(The high percentage of ash is due to the difficulties in 

 removing dirt from a borehole-sample.) 



For comparison we may give the analysis of the 2 ft. 9 in. 

 seam at 1813 ft. from the Dover boring: 



Carbon 83*80 



Hydrogen 4-65 



Oxygen 3-23 



Heating power 14-867 



The fireclays which form the floor of some of these seams 

 are of good quality. The floor of the Beresford Seam at 

 Fredville appears to be exceptionally fine and adapted to the 

 manufacture of high-class pottery and ornamental ware ; so that, 

 apart from their value as refractory materials, they will give rise 

 to a subsidiary industry which will rival the Potteries of the 

 Midlands. 



The cores of both these borings have been thoroughly 

 searched for fossil plants by Mr. E. A. Newell Arber, F.G.S., 

 who was able to determine twenty-two species from Walder- 

 share and fifteen from Fredville. Mr. Arber refers both these 

 series to the Transitional Coal Measures, thus correlating them 

 with the Lower Pennant Series of South Wales, with the 

 Potteries Coalfield, with the South Lancashire Coalfield, and 

 with Zeiller's Zone C, which comprises nine-tenths.of the Pas- 



