88 System at the Londonderry Collieries. 



vapour bath, each would perceive the advisability 

 of reform. As such irregularities are in a coalpit 

 hundreds of feet below the surface,, they do not 

 see, and it is very useful to be determined not to see. 



With the exercise of common knowledge a 

 man may be expert at purchasing corn, and 

 make good bargains, but it requires a little 

 more than that to adapt a proper system to the 

 constantly varying wants of a large number of 

 animals. If the principles of dieting and 

 management require no more philosophy, and 

 can be conducted with success without presence 

 or information, the sooner such gentlemen take 

 up also the treatment of disease by a system of 

 telegraphy the better, and probably they may 

 then make both ends meet still more satisfactorily 

 to themselves. 



From a strict examination of all phases and 

 conditions, as they exist on that estate in com- 

 mon with many others, a more highly nutritious 

 diet can be guaranteed a reduction of disease 

 and mortality therefrom to a minimum by the 

 exercise of care and watchfulness, and these with 

 a saving of hundreds of pounds annually. 



The principle is of easy calculation. In large 

 numbers, say three or four hundred animals, if 

 two or three shillings only per week can be saved, 

 it is a large sum at the end of the year. With 

 other agencies it may also be increased. But on 

 collieries there are objections to figures, except 

 when they are used by the powers that be, and 



