(Puivir. JourN. Sct., 21, No. 1. 
Copra DryInoc.] 
WELLS AND PERKINS: 
Sulphuring box with sixteen trays. 
i. 
Fig. 
&. 
a 
x 
ot 
ae 
¢€ 
© 
with nine trays. 
Sulphuring box 
2 
Fig 
PLATE 1. 
