90 



FEEDING ANIMALS. 



We give in fig. 5 the elevation of an octagonal barn of 80 

 feet diameter, built by the author in 1875, inclosing 5,304 

 square feet, having posts 28 feet long with a capacity to 

 the top plates, in the story above the basement, of 148,514 

 cubic feet. This octagon has an outside wall of 265K feet 

 and was built to replace four barns destroyed, having an 

 aggregate outside wall of 716 feet, and yet this barn has 

 about 25 per cent, greater capacity than all four barns lost, 

 showing the great economy of this form in expense of wall 

 and siding. 



Fig. 5. OCTAGON BARN (NORTH ELEVATION). 



EXPLANATION. p, plate ; r, tie-rod and bridging between rafters ; *, purlin rim ; 

 t, hip rafters. 



