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X. Some Account of the Mufta Pumilionis of Gmelins Edition of, the 
Syf. Nature. By William Mar klick, Efg. F. L. S. With additional 
Remarks by d. Marfbam, Efq. Sec. L. S. | 
Read Now. Y, 1701. 
Y, ARLY in the courfe of the laft fpring fome fields of wheat in 
the neighbourhood of Battle appearing to be much blighted, 
a friend of mine difcovered it to be caufed by a {mall infe&t of the 
grub or caterpillar kind, lodged in the centre or very heart of the 
ftem, juft above the root. About the latter end of March I pro- 
cured fome of the wheat, examined it, and found in moft of it a 
"Ímalllarva or caterpillar alive; but in fome it was already changed 
. into the chryfalis ftate. | 
Being exceedingly anxious to determine the fpecies of this ap- 
parently deftru&ive animal, I planted fome of the difeafed roots 
in my garden under a hand glafs, where they flourifhed very much, 
and threw out ftrong fhoots on each fide (the middle fhoot wither- 
ed); but whether the flies efcaped through fome hole in the glafs, 
or whether they were devoured by a colony of ants which made 
their neft under the glafs, I cannot tell, as I did not fucceed in this 
attempt; for when I pulled up the wheat and examined it, there 
was an empty chryfalis in each plant. However, I had better luck 
in my next attempt: I placed feveral of the difeafed roots of the 
wheat in a fmall flower-pot filled with bran, and covered it over 
clofe with gauze; in fuch a manner that no infeét could get in from 
the 
