/ McC. Meadows — On the Leinster Coal-Jield. 103 



The three-feet seam of Coal extended here to the foot of the hill, 

 and there, by a fault or dislocation of the strata which runs some- 

 what parallel with the hill, the seam was thrown down to a lower 

 level. Owing in part to being so thrown down, but mainly to the 

 steepness of the hill-side, which here rises quickly and immediately 

 over it, there is here found overlying the three-feet seam a greater 

 vertical thickness of strata than has been met with over that seam 

 at any other part of the field. These strata contain in them 

 three other workable seams of Coal that are nowhere else found 

 together in the field, but which obviously once extended over the 

 entire area of the three-feet seam, before the land had been worn 

 away and shaped as it is now found. 



These upper strata extend, however, but for a short distance, 

 Immediately to the east of them, and nearly parallel with the crest 

 of the hill, one of the principal faults of the Coal-field strikes away 

 in a north-east and south-west direction, bringing up to the south- 

 east, within a few feet of the surface, the strata that contain the 

 three-feet seam of Coal, and with them an extension of that seam 

 upon the hill and the high ground behind it to the east and north, in 

 the direction of Monteen and the Doonane river. The maximum 

 displacement or throw of this fault is about eighty yards. 



In the strata that have been referred to as forming the hill-side to 

 the west of this main upthrow fault, in a thickness of less than 

 seventy yards over the three-feet seam of Coal, the following section 

 is found : — 



Strata. Coal. 



Yds. Ft. Ft. Id. 



Surface-soil and sub-strata 4 



Peacock, or 22-inch seam of Coal ... 1 10 



Intermediate strata ... ... ... ... .. ... ... 15 



Stony Coal 3 



Intermediate strata 7 



Double seam... ... 2 6 



Intermediate strata 36 



The three-feet seam ... ... ... ... ... ... ... 3 



To these may now be added the other seams and strata, in 

 descending order, viz. : — 

 Intermediate strata, between the three-feet seam and Jarrow Coal, 



from 70 to 80 yards 70 



Jarrow Coal, from one foot to four feet in thickness, average ... 2 6 



Intermediate strata, thickness not ascertained, but it may be from 



150 to 200 yards unascertained 



Rushes seam 1 6 



Intermediate strata ... ... ... ... ... 60 



Eossmore Foot Coal 1 



As far as present knowledge of the field extends, the foregoing 

 section presents a fair classification of the several workable seams 

 of the Leinster Coal-district. Seams six inches in thickness and 

 under are omitted, as, although useful to the miner for the identifi- 

 cation of particular beds, they are not of any commercial value. 



Surveys of the District. 

 In the year 1814 a Geological and Mining Eeport upon the 

 Leinster Coal-district, by Sir Eichard Griffith, then Mining En- 



