Figure 21.--Many of the modern type 
flue-cured curing barns are heated 
by oil or gas. 
Figure 22.--The older type log cur- 
ing barns had wood-burning fire- 
boxes on the outside. 
Figure 23.--Inside view of a curing 
barn showing metal flues that 
carry heat from a furnace. ———>>— 
— — — ——————————— SST 
