GEOLOGICAL SOCIETY OF 



PENNSYLVANIA. 



219 



COAL. 



lecific 

 avity. 





ht of one 

 ic Yard. 





kness of 

 Veins. 



ontents or 

 t per acre 

 ch vein. 



per acre. 





mO 





Weig 

 Cub) 





Thic 

 the 



Gross c 

 weigh 

 of ea 



Tons 







tons 



cwt. 



lbs. 



feet 



tons 





Coal in Coal run 



1.367 



1 



0 



60^ 











Do. 2d experiment, select and 



















pure 



1.371 



1 



0 



73 





3.00 



5000 





Do. 3d experiment, rather 



















slaty 



1.400 



1 



1 



10 











Clements'scoalin Bear creek, average 



1.398 



1 



1 



7 



3.25 



5530 





Bloss's coal in Bear creek, lighter part 

















of vein 



1.378 



1 



0 



85) 



3.00 







Do. heavier part of same vein 



1.432 



1 



1 



64 V 



to 



^5123 





Average of the coal 



1.405 



1 



1 



19 S 



3.25 







Johnson's creek, splint coal, two veins 



1.493 



1 



2 



55 



3.00 



5442 





Cannel coal in Coal run, at the cross 



Do. the purest quality 

 Bigvein in Morris'srun, by estimation 



1.716 



1 



5 



96 









1.750 



1 



6 



41 

















6.00 



10,000 





Little vein of very pure inflammable 

















coal in Coal run, under the kidney 

















ore 



1.500 



1 



2 



65 



1.25 



2115 





Limestone, from Limestone hill 



2.667 



2 



0 



20 









Coarse grained millstone grit 



2.505 



1 



17 



83 









Fine silicious rock, or petrosilex, lo- 

















cally called marble 



2.703 



2 



0 



81 









Red ferruginous clay of Coal run 



2.514 

























Weight 





ARGILLACEOUS IRON ORE. 

 Weak ball ore, on surface, below Cle- 





Weight of one 

 Cubic Foot. 





foot thick 

 per acre. 

 3694 





ments 's coal 



3.047 





1 



78 







Kidney-shaped ore, or pins, raised for 















furnace 



3.400 





1 



98 





4083 





Do. 2d experiment 



3.423 





1 



102 





4161 





Average weight 



3.412 





1 



100 





4122 





Ball ore in the bed of Bear creek, 420 















feet above the Tioga river 



3.212 





1 



89 





3908 





Ball ore in large masses at Morris's run 



3.440 





1 



103 





4200 





Ball ore in rich nodules at Johnson's 















creek 



3.999 





2 



26 





4852 





Vein of silicious or sandy ore in Coal 















run, fine-grained 



3.135 















Do. 2d experiment, coarse 







1 



86 





3850 



6000 



grained 



3.196 













