PRODUCTION OF SIRUP FROM SWEET POTATOES. 
13 
Fig. 9. — Flavoring and bottling kettle. 
The coils were so arranged that five sections secured steam from 
one header line and discharged into one line, while the other five 
sections were fed by another header and discharged through a sep- 
arate line. The sections on one header line were alternated with the 
sections on the other. The sections were also staggered in such a 
manner as to form baffles to the air as it passed through the heating 
unit, thus increasing the efficiency of heat transmission. The roils 
were incased in a housing built of siding, lined with tin. The hous- 
