108 FEEDING ANIMALS. 



should come even with the outside of the sills. The plan 

 we adopt is so simple and easily carried out that it is here 

 given as a guide. The foreman in building this form of a 

 barn will always have a working plan. Let him get the 

 exact measure from the center to one corner. Now let 

 him make a measure of this exact length, with a three- 

 eighths hole at one end that is, from the center of this 

 three-eighths hole to the other end should be the exact 

 length from the center of the octagon to one corner. Now, 

 having found the center of your proposed space to be 

 walled in, drive a stake here firmly into the ground, saw it 

 off four inches high, bore, and drive a three-eighths pin 

 into the top of this stake, and place the hole bored in one 

 end of the measure on this pin. Now bring the opposite 

 end where you wish the first corner, and drive a peg at the 

 end of the measure to make the first corner. Then take 

 the pattern your carpenter has made for the sill (and he 

 should always have an exact pattern, so that he may make 

 no mistake) and put the outside corner on the center of 

 this first peg, letting one man hold it while the measure is 

 swung round to the other end of this sill pattern; and 

 when the ends of the measure and pattern are brought 

 together you have the second corner, at which you will 

 drive another peg. Now move your sill pattern to the 

 second peg, and carry your measure to the other end for 

 the third corner, and so on till you come around to the 

 first peg driven. If the work is well done you cannot 

 avoid placing all your corners equi-distant from the center 

 and in accurate octagonal form. 



CONSTRUCTING THE BOXES FOE THE WALL. 



Having determined the place and excavated for the wall, 

 construct the boxes as follows : Take 3x4 scantling for 

 the standards, a little longer than the wall is high, place 

 these on each side of the proposed wall, as far apart as the 



