consider it superfluous
to discuss in this connection any of the other ferruginous preparations.

Iodine I have employed with a view to its absorption in rheumatism and
gout. I cannot speak favorably of it in this connection. I have not in a
single instance found a bath charged with iodine, either in the form of
the tincture or of iodide of potassium, followed by results in any way
differing from those of the simple galvanic bath employed in the same
cases.

Extract of malt I have employed as a roborant, either alone or in
conjunction with iron, in cases of debility and malnutrition, and found
it of service.

Where the absorption of substances is aimed at, the _galvanic_ current
must be employed.

Where we add substances to an electric bath with a view of producing
some special action on the skin, we may be guided by the same principles
that govern ordinary balneology. Thus to obtain counter-irritant
effects, we may add mustard or common salt; to render the bath alkaline,
bicarbonate of potassa or soda, etc., etc.

An important object to be furthered by the addition to the galvanic bath
of chemicals, is the elimination from the system of certain metallic
substances. It will be found here that in practice we have to deal
chiefly with two substances, viz: mercury and lead. That the elimination
of these bodies by means of the galvanic bath is feasible, I shall
endeavor to demonstrate further on. At present I have simply to consider
the chemicals adapted for the purpose, and the manner of using them.

To facilitate the extraction from the system of mercury, nitric-acid has
been recommended by those who have heretofore instituted this treatment.
While I cannot positively deny that this substance may aid in the
elimination of the metal, I am compelled to state, after its trial in
several cases, that I have obtained equally good results from the simple
galvanic bath. In the light of my own limited experience, therefore, I
cannot insist on the necessity of adding any chemical to a galvanic bath
which is administered for the purpose of extracting mercury from the
body.

Where the elimination of lead is the object aimed at, I am, on the other
hand, satisfied of the utility of adding certain chemicals to the water
of the bath. Sulphuric acid has been suggested and used for this
purpose. I can say nothing respecting its usefulness, as I have never
tried it. Indeed, the results with iodide of potassium added to the bath
hav