THE ERGOT OP RYE, ETC. 
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produced by numbers of small acari, (fig. 18) which devour 
the interior, thereby rendering such specimens nearly inert, 
and producing much powdery excrementitious matter about 
the ergot, similar to that observed with those species that dwell 
in cheese, or devour malted or other corn; therefore, the prac- 
tice of keeping camphor, or some strongly smelling body with 
the ergot, is likely to be a preventive to the attacks of these 
tiny depredators. 
EXPLANATION OF THE FIGURES. 
Fig.1 represents the young grain of rye twice its natural size, 
(a) being the ovary crowned with hairs (b); (c c) the feathery 
stigmas; (d) the place of the embryo; (ee) the two scales at the 
