Bul. 908, U. S. Dept. of Agriculture. PLATE VIII. 
Fic. |.—DEVICE FOR CLEANING CANS. 
Sawdust is passed down the rotating tube with the cans. 
Fic. 2.—CANS OF SARDINES AFTER THEY HAVE BEEN 
PROCESSED. 
It may take from 8 to 10 hours for the interior of such a pile, which is 
100 feet long, 8 feet wide, and from 4 to 5 feet deep, to lose its heat. 
