that the local profession have not been mistaken, and have sustained
their high reputation.

I should say that I have examined a great deal of sputa, but, with the
exception of cases that were malarious, I have not encountered the
mature plants before. Of course I have found them as you did, in my own
excretions as I was traveling over ague bogs.

[_To be continued_.]

* * * * *




ICHTHYOL.


DR. P.G. UNNA, of Hamburg, has lately been experimenting on the dermato
therapeutic uses of a substance called ichthyol, obtained by Herr
Rudolph Schroter by the distillation of bituminous substances and
treatment with condensed sulphuric acid. This body, though tar-like in
appearance, and with a peculiar and disagreeable smell of its own, does
not resemble any known wood or coal tar in its chemical and physical
properties. It has a consistence like vaseline, and its emulsion with
water is easily washed off the skin. It is partly soluble in alcohol,
partly in ether with a changing and lessening of the smell, and totally
dissolves in a mixture of both. It may be mixed with vaseline, lard,
or oil in any proportions. Its chemical constitution is not well
established, but it contains sulphur, oxygen, carbon, hydrogen, and also