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converted into a rich orange-yellow dye, which could be readily fixed 
upon woolens or silks by the alum mordant liquor, and that an ochreous 
yellow lake could be made from them by precipitating the coloring mat- 
ter with gelatinous alumina. There has been, however, no commercial 
adoption of the results of these experiments. 
The best remedy against this species is suggested by the fact that 
in winter it will collect in numbers on piles of cotton seed, which can 
then be used as traps and the insects destroyed by the application of 
hot water. 
