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APPENDIX. 
where the highly “ glutenous ” Russian and Hungarian Wheats are 
used. My correspondent, who has had much experience in watching 
the workings of the caterpillar, considers its presence in these to be 
attributable to a great amount of gluten suitable for the food of the 
larvae being present in these Wheats. I cannot myself say how this 
may be, but as—at first sight at least—the presence of the caterpillar 
might appear attributable to its being exported from the country 
where the Wheat grows which it frequents, I wrote to Dr. Charles 
Lindeman, of Moscow, who is excellently acquainted with the crop- 
pests of Russia, to enquire whether he could favour me with any 
information as to presence of this attack in Russia or Hungary. 
Dr. Lindeman was good enough to reply at once that he was not 
aware of its presence in Southern Russia, but that in Central Russia 
he could take upon himself to state that this insect had not up to the 
present time been observed. Further, Dr. Lindeman informed me 
that Dr. Sorhagen, of Hamburg, and other Lepidopterists ( i . e., 
observers of this order of insects), consider this moth has been 
imported to Europe from America. 
As it might prove of great service in preventing this pest settling 
in our Wheat-mills, or stores, to know from what country to look for 
its transmission, I have, on receipt of Dr- Lindeman’s information, 
written to Prof. Riley, Entomologist to the Department of Agriculture, 
U. S. A., requesting him to let me know whether he was acquainted 
with it as a flour infestation, and if so whether any means were found 
available for prevention or remedy of its ravages, and powers of 
clogging mill-apparatus. 
From Prof. Riley’s immense information and great courtesy I have 
no doubt he will favour us with as full a reply as may be in his power, 
which, with his permission, I shall at once give all serviceable points 
of for public use.—E. A. 0. 
