Plate 48 is seated on steps 46 in such a manner that a carbonaceous gas produced within compartment 50 flows around plate 48 and into {HEAD ~ chamber} 56 as indicated by {TAIL ~ arrows} 60 
as indicated by
Plate 48 is seated on steps 46 in such a manner that a carbonaceous gas produced within compartment 50 flows around plate 48 and into { HEAD ~ chamber } 56 as indicated by { TAIL ~ arrows } 60
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD OTH REL REL REL TAIL TAIL TAIL TAIL TAIL OTH