1863.] Trains passing through a Tunnel. 77 



1847, March 19.— II. 



No. 



Time. 



Observations. 



Yards. 



Remarks. 



i68 



169 

 170 



171 



6 56 52 

 57 12-5 

 57 30 



57 49 



58 25 

 58 44 



South gun. 



Cross \erv bright 



Shaft gun. 



919 



397 

 306 



978 



Velocity 32*8 miles ; train 67 tons ; 

 engine 14 tons ; train's length 231 

 feet. 



Observed by the Marquis of Blandford. 



III. 



172 



173 

 174 



175 



7 15 20 

 15 24 

 15 45 



15 55 



16 38 

 16 46 



Shaft gun. 

 South gun. 



697 



383 

 313 



781 



Velocity 32-1 miles ; train 68*5 tons; 

 engine 14 tons ; train's length 234 

 feet. 



Observed by Lord Alfred Churchill. 



IV. 



176 



7 24 40 





1042 



Velocity 24*0 miles ; train 98*5 tons; 



177 



24 



57 





848-5 



engine 12*5 tons ; train's length 156 





25 



18 



South gun. 





feet. This night very unfavourable. 



178 



26 



5 



Cross extremely strong.. 



302 



Many observations lost from clouds, 



179 



26 



10 



(5) 



309 



and the stars when seen often faint. 



26 



57 



Shaft gun. 





180 



27 



26 





1005 





1847, March 22.— I. 



181 



7 22 



12 





759 



Velocity 23*6 miles 



; train 86-5 tons; 



182 



22 



24 



South gun. 



engine 12' 5 tons ; 



train's length 203 



23 



22 





323 



feet. 







24 



5 



Shaft gun. 







183 



24 



33 





964 







II. 



184 



7 38 



32 





1025 



Velocity 20*7 miles; train 68 tons; 



185 



39 



10 





668 



engine 14*5 tons; train's length 233 





39 



12 



Shaft gun. 





feet. 



186 



40 



12 



(5) 



304 







41 



7 



South gun. 







187 



41 



36 





950 





III. 



188 



190 



58 20 



58 33 



59 4 



59 47 



60 8 



Cross 



Shaft gun. 

 (5) beautiful 

 South gun. 

 Cross lost . 



827 



3ia 



972 



Velocity 31 "4 miles; train 88 tons; 

 engine 21 tons ; length of train 288 

 feet. 



g2 



