ANALYSIS OP CASUALTIES. 



of each class of persons who were killed and injured in the 

 transport of a million of passengers over an hundred miles of 

 railway, in each of the intervals of two years to which the 

 preceding returns refer. 



This is effected by a simple proportion, and is, in fact, nothing 

 more than a question in the rule of three. As the total mileage 

 divided by an hundred is to the number of accidents reported, 

 so is a million to the number of accidents produced in the 

 transport of a million of passengers an hundred miles. 



The following are the results of such a calculation : 



14. Table showing the mean numbers and classes of persons kitted 

 and injured in the transport of a million of passengers over 

 an hundred miles on the Railways of the United Kingdom. 



1S47-8. 



1850-1. 



15. The numerical results consigned to this small table, 

 when clearly comprehended, are full of interest and importance ; 

 of interest and importance not merely to the travelling public 

 who are exposed to these dangers, but to the railway directors, 

 as indicating the real proportion which such disasters bear to 

 the total amount of personal locomotion, and to the government 

 authorities whose duty it is to see that the greatest practicable 

 precautions are adopted for the public safety. 



For the benefit of those who are less accustomed to deal with 

 such arithmetical results, we shall here examine some of the 

 consequences deducible from this table. 



It appears that in 1850-1, 2'98, or very nearly three passengers 

 in every million who travelled one hundred miles were killed. 



167 



