386 



fRANSACTIONS OF THE 



WORK PERFORMED BY THE FOLLOWING 



MINES. 



ENGINE, 

 and the 

 diameter 

 of the cylinder. 



Load 

 in 



horse 

 power, 

 on the 

 piston. 



Load 

 per 

 square 



inch, 

 on the 

 piston. 



Length 

 of the 

 strolie, 

 in the 

 cylin- 

 der. 



No. 



of 

 lifts. 



1 

 1 



3 

 1 

 1 

 1 



Depth. 



Diam- 

 eter of 



the 

 pump. 



Time. 



Con- 

 sump- 

 tion of 

 coal in 

 hush- 

 els. 



VVh. Unity 

 Wood 



Williams's 

 engine, 



80 inches, 

 single. 



229,8 



lbs. 



6,86 



feet 

 10 



10 



fms ft 



31 5 

 35 1 



32 3 



10 0 



11 5 

 7 0 



ins. 

 12 ) 

 18 ( 

 14 ) 



9 \ 



Sep 1 



to 

 Sep 30 







Sims's en- 

 gine, 

 90 inches, 

 single. , 



322,3 



7 6 



1 



5 



4 3 

 111 0 



13 

 171 







Wh. Damsel 



S f" O ll P n C! ' C! 



engine, 

 50 inches, 

 single. 



155,7 



11,9 



9 33 



8 

 1 

 1 

 2 

 1 

 1 



157 0 

 11 0 



5 0 

 37 2 

 10 4 



6 0 



6 I 



7 \ 

 6 ) 



5 } 

 3hS 



Sep 2 



to 

 Sep 30 



812 



Wh. Jewell 



39 inches, 

 single. 



78,4 



9,85 



8,5 



1 

 1 

 1 

 1 

 1 



32 5 

 32 3 

 20 0 

 8 0 

 15 3 



10 



9 



8 



71 

 ' 2 



6 



ditto 



272 



Cardrew- 



DOWNS 



66 inches, 

 single. 



228 



10 



8,75 



2 

 1 



2 

 2 



50 0 

 4 0 

 18 3 

 50 0 



71 



' 2 



10 



161 

 16 



Sep 1 



to 

 Oct 1 



1134 



Wh. Tolgus 



Davey's 

 engine, 

 70 inches, 

 single. 



202,1 



7,88 



10 



1 

 I 



2 

 1 

 1 

 1 



4 0 



9Q 1 



57 3 

 11 4 

 11 3 

 11 4 



8i 



141 

 14| 

 12 



8i 



ditto 



962 



Ditto 



Horton's 

 engine, 



70 inches, 

 single. 



243,7 



9,5 



10 



2 

 2 

 1 

 1 

 1 



33 3 

 65 4 

 22 5 

 10 1 

 10 0 



8 



161 



11 



10 



ditto 



1638 



