Preserving Green Forage 17 



annex, when pressed, will all come down inside 

 the solid walls. Under strong pressure, these 

 walls are held up very firmly by the iron rods, 

 the timber across the top acting as a spring 

 upon the forage. In this way, we feel sure of 

 the strength of our walls, and we can get all 

 the pressure we want. The governors convey 

 the abundance of juice to all parts of the silo 

 evenly. 2x8 plank studding, to support the 

 roof of the silo, should be placed upon the cap, 

 so as to support the planks placed round the 

 top, and bring them just level with the silo 

 wall. In this way, all time, trouble, and ex- 

 pense of weighting are avoided. In weighting, 

 when the governor is used, it requires about 

 100 pounds to each square foot of surface, 

 which is equal to 200 or 300 pounds where 

 there is no governor. 



In the very centre of the bottom of the silo 

 is placed one end of the drip pipe (seen in cuts, 

 Figs, i, 2, letter k, page 41, to come flush 

 with the surface of the bottom. This pipe 

 should be about 3 inches long, made of rj- 

 inch pipe, screwed into an elbow at the bottom 

 of the silo, and from this elbow should run a 

 horizontal pipe declining 6 inches to any con- 

 venient place outside and from underneath the 

 wall. This pipe should end in a J. to turn up, 



