UTILIZATIOX OF WASTE SEED FROM THE TOMATO. 
11 
equipment because of the necessarily increased size of the air blower 
and the consequent power required for operating it. 
A drier which can be satisfactorily used for handling tomato seed 
for oil extraction is a tunnel drier described in Farmers' Bulletin 984, 
United States Department of Agriculture (fig. 6). An adaptation 
of this form of drier for handling the quantities of seed produced 
by a plant pulping 1,000 baskets of tomatoes a day is a rectangular 
box 10 feet long. 2 feet wide, and 6 feet high. One end rests upon 
the floor (fig. 6, left), and the other end is raised 2 -J- feet above the 
floor level by increasing the length of the studding. This gives the 
floor and ceiling of the box a uniform slope of 3 inches per foot of 
Fig. 6. — A 1-tunnel evaporator. 
length. The box has a solid floor except at the lower end, where 
there is an opening 3 by 2 feet which permits the entrance of warm 
air from the furnace placed immediately below the opening. A 
ventilating shaft 2 by 3 feet is placed at the upper end and extends 
through the roof to a height well above the top of the chimney and 
the peak of the roof. 
The runways carrying the trays are made of strips 1 by 1 inch or 
1 by 2 inches, nailed 4 inches apart to the studding on centers, thus 
accommodating 16 tiers of trays, one above another.. The trays may 
be 2 by 3 feet or 2 by 4 feet, made of wire mosquito netting nailed 
to frames made of wooden strips 1 by 1 inch. 
