Preserving Green Forage 21 



We find that we can easily elevate or depress 

 the cross timbers upon the iron rods any re- 

 quired distance, blocking the ends between the 

 cap and the washers. We then run a line of 

 6x6 timber the whole length of the silo upon 

 the 8x8 cross timbers in the centre, securing 

 them with lo-inch lag-screws. We fasten the 

 hangers of the track to the bottom of the 6x6 

 timber in the centre with 4-inch lag-screws. 

 We then place the 3/6 x 3 inch iron in the slots 

 at the bottom of the hangers, fastening them 

 by turning up the set-screws, and the track is 

 complete. This track is furnished with a 

 double-roller troll, and is quickly put up by 

 any one of ordinary capacity, and is easily 

 changed or removed with very little time or 

 trouble. The double-roller troll, with the 

 track and hangers, is made by R. J. Davies, 

 Creek Square, Boston, and costs from $15 

 to $20. 



THE FEED-BOX. 



A feed-box, made of stock \y 2 inches 

 thick, 2 feet deep, 4 feet wide outside at the 

 top, and 3 1-3 feet wide outside at the bottom, 

 with perpendicular ends grooved into sides 

 5 feet long, i y 2 inches from the ends, with 



