Section of two New Coal Pits near Newcastle, 619 



Splint, .... 



Main coal, .... 

 Colliery coal, . 

 Ditto, 



Analysis of Tyne Coal. 



Carbon. 



Hydro. 



Azote & Oxygen. 



Ashes. 



74-82 



6-18 



5 08 



13-91 



84-85 



5-04 



8-43 



1-67 



87-95 



5-24 



5-42 



139 



83-27 



517 



9-04 



2-52 



Experiments on the Strength of Great North of England Rails. 



Expt. No, 1. 



No. 3. 





No. 5. 





Inch. 





Inch. 





Inch. 



10 cwt.'deflection, 1-16 



10 cwt. deflection 



1-8 



10 cwt. deflection 



3-32 



20 „ " „ 3-16 



20 „ 



1-4 



20 „ 



1-4 



30 „ „ 9-32 



30 „ 



3-8 bare 



30 „ 



5-16 



40 „ „ 7-16 



40 „ 



15-32 



40 „ 



7-16 



50 „ „ 9-16 full 



50 „ 



11-16 



45 „ 



15-32 



55 „ „ 13-16 



55 „ 



15-16 







Leaving a permanent set 



Leaving a permanent set 



Leaving no set. 





of 5-16 of an inch. 



of 7-16 of an inch. 









No. 2. 



No. 4. 









Inch. 





Inch. 







10 cwt. deflection, 1-8 



10 cwt. deflection, 



1-8 bare 







20 „ „ 1-4 



20 ,, 



1-4 







30 ,, „ 5-16 full 



30 „ 



5-16 







40 „ „ 7-16 



40 „ 



7-16 







50 ,, „ 9-16 



50 „ 



9-16 







55 „ ,, 11-16 full 











Leaving a permanent set 



Leaving a permanent set 







of 3-16 of an inch. 



of 1-16 of an inch. 









BISHOP'S COLLEGE PRESS. 



