82 



PLANT I'KCJPAGA'l-ION' 



Line 



Floor inForcing R. 



Flo or- rftM6t: Be Jfr-aHic 



Tool Room I iL 



12 X 12 FT prTr 



ot Bed 6 K60 FI 



Hie. 72— FIRE-HEATED HOTBED OR SWEET POTATO PLANT STARTER 



A, sectional view through side; B, ground plan: C, cross sections; D, general 

 outside view; E, construct-on; F. detail. 



