ON WARMING AND VENTILATION. 



333 



building was intended for fifty children, and the volume of air to be 

 drawn out had been fixed at 1800 M.C. per hour. It was equal to 1800 

 M.c. The consumption of coal for this purpose was 1^40 per hour. 

 Primary Schools, Rue des Petits-hotels, Paris. 



Volume of air required. Quantity obtained. 



First Floor 

 Second Floor 



4000 M. in an hour. 

 2000 M. 



those 



4030 M. 



1989 M. 



And this in spite of serious defects in carrying out the process. 



Barracks. The arrangements for barracks are similar to 

 noticed above. 



Ships. Dr. Reid has, in his work, pointed out very sensible arange- 

 ments. M. Bertin, an engineer in the French navy, has, on a ship 

 adapted for the transport of 308 horses, made use of the heat escaping 

 from the steam boilers and cooking-fires. The quantity of air to be 

 got rid of, for each horse had been established at 150 M.c. per hour. 

 Total, 33,900 M. in one hour. The result of experiments made in calm 

 weather, with the auxiliary fires alone, gave 143 M.C. per horse, in all 

 31,934 M.c. per hour. 



Hospitals. At the hospital Ste. Eugdnie, Lille, the volume of air, 

 to be renewed per bed and per hour had been fixed at 45 M.C. too 

 low a figure corresponding, in a room with twenty-two beds, to a 

 total of 45 x 22 = 990 M.c. It was much exceeded, as may be seen 

 by the following results : 



Total: 12.169 



Average: 184 



RESULTS. 



During the war, the number of sick-beds was augmented from twenty- 

 two to sixty, and for the wounded to fifty. But the ventilation rose to 

 5060 for sixty beds, or 84 M.c. per bed. Thanks to this thorough ven- 

 tilation, no case of hospital gangrene broke out. 



With regard to Field Ambulances, the American system might be 

 adopted. 



