26 



THE POLK SYSTEM 



damaged ensilage in silos without roofs than we have where roofs 

 have been used. Especially where the corn has been put up a 

 little dry the rains will keep it moistened so that there will be no 

 danger of it drying and spoiling. 



However we are well equipped for building concrete roofs and 

 have an excellent proposition for the man who wishes a good 

 everlasting water tank on his silo. 



"They are not built of piece* and they 

 cannot so to pieces. 



