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[[preprinted]]
UNITED STATES NATIONAL MUSEUM
UNDER DIRECTION OF
THE SMITHSONIAN INSTITUTION
WASHINGTON
[[/preprinted]]

by the use of chloroform; this is very effectual so far as live insects are concerned, but apparently the germs that exist in some specimens are not destroyed, for, after awhile, we have a reappearance of what we hoped to have gotten rid of. I will cite as examples that have come under my notice the following drugs which have been so affected - Aconitum, Ferox, Sarsaparilla, Coriander and other Umbelliferous seeds. With rhubarb and many other roots this however does not happen, as our experience tends to show that with these drugs one application of chloroform is sufficient. 

With mould we find that applications of chloroform do no good toward preventing