k_,
Fig. 1. where said pump is used to raise the liquid delivered from the
chest, _a2_, and discharge it into the trough, _m_, by which the
pulp is carried to the inlet pipe, _b_. By the use of the pump, _h_, a
stronger flow of the liquid into the pipe _b_, of the first chest,
_a_, is effected than if it were taken directly from the washer of the
chest, _a2_, which is desirable, as the pulp is delivered in the
trough, _m_, with but little moisture.

It is obvious that the construction of the apparatus may be varied
considerably without materially changing the essential features of
operation. For example, the washers might be dispensed with and the
liquid permitted to flow through suitable strainers from one chest to
the next in order, by gravity, the successive chests in the order of
the passage of the pulp being placed each at a higher level than the
preceding one, and it is also obvious that the construction of the
pulp conveyors might be widely varied, it being essential only that
means should be provided for removing the pulp from one chest and
delivering it into the next while carrying only a small amount of the
liquid from one chest to the next with the pulp.

* * * * *

THE USE OF COMPRESSED AIR IN CONJUNCTION WITH MEDICINAL SOLUTIONS IN
THE TREATMENT OF NERVOUS AND MENTAL AFFECTIONS.

BEING A NEW SYSTEM OF CEREBRO-SPINAL THERAPEUTICS.

By J. LEONARD CORNING, A.M., M.D., New York, Consultant in Nervous
Diseases to St. Francis Hospital, St. Mary's Hospital, the Hackensack
Hospital, etc.

To merely facilitate the introduction of medicinal agents into the
system by way of the air passages, in the form of gases, medicated or
non-medicated, has heretofore constituted the principal motive among
physicians for invoking the aid of compressed air. The experiments of
Paul Bert with nitrous oxide and oxygen gas, performed over fourteen
years ago, and the more recent proposals of See, are illustrations in
point.

The objects of which I have been in search are quite different from
the foregoing, and have reference not to the introduction of the
remedy, but to the enhancement of its effects after exhibition. Let me
be more explicit on this point, by stating at once that, in
contradistinction to my predecessors, I shall endeavor to show that by
far the most useful service derivable from compressed air is found in
its ability to enhance and perpetuate the effects of soluble remedie