33« 



ENGINEERING ON THE FARM 



The table below, after L. J. Smith, Bulletin ij, Manitoba 

 Agricultural College, gives the approximate cross section per 

 animal of outlet flues of various heights in the King system. 



Area of Outlet Flues per Animal 



Height of Flue 



Horse 

 Cow. . 

 Hog.. 



Sheep 



40 Ft. 



36 sq. in. 



30 

 12 



8 



30 Ft. 



40 sq. in. 



34 



14 



9 



20 Ft. 



44 sq. m. 



38 

 16 

 10 





r 



1 1 

 1 1 



L. 



Fig. 268. King system of barn ventilation 



