prepared for
those who want such a Medicine. The Union of these two Substances
is very remarkable, one being the heaviest solid Body we know, the
other the lightest Liquid.

The AETHER is remarkably cold, when dropped upon the Hand, and it
affects the thermometer in an extraordinary Manner; for if the
Ball of either a Mercurial or Spirituous Thermometer be immersed
in it, the Spirit or Mercury immediately sinks considerably, tho'
both the AETHER and the Thermometer have stood a sufficient Time
together to be brought to the temperature of the Room, before the
Experiment was made. The Thermometers dipt into Water, or Spirit
of Wine, in the same Manner, suffer not the least Alteration.

They who chuse to see a further Account of the singular Effects
which this curious Fluid produces, may peruse what Doctor
_Frobenius_, a _German_ Chemist, has published concerning it, in
the Philosophic Transactions for the Years 1733 and 1741.

But the most valuable Qualities of the AETHER are it's _medicinal_
ones; it having been found by repeated Experience to be an
excellent Remedy in most _nervous Diseases_; particularly in FITS
of all sorts, whether _Epileptic, Convulsive, Hysteric,
Hypochondriac, or Paralytic_: In habitual HEAD-ACHES, GOUT,
RHEUMATISM, PAINS IN THE, STOMACH, WINDY DISORDERS OF THE STOMACH
AND INTESTINES, HOOPING COUGH, ASTHMA, PLEURITIC PAINS, and
DEAFNESS, all which Diseases have, in a singular Manner, been
removed by it; and that the Publisher may contribute all the
Assistance he can in extending the use of this Medicine, the
following Methods of applying, it are given, which have been
attended with Success.

_Particular Directions for using the_ AETHER.

In the HEAD-ACH.

A fit of the Head-ach is almost instantly removed by applying the
AETHER externally to the Forehead, by means of a bit of Linen Rag,
in the Manner hereafter directed for it's external Application. Or
it may be applied to any other Part of the Head where the Pain
lies, being first shaved, if necessary. If the Pain is violent, a
Dose of it should be also taken inwardly. In stubborn Cases it
will likewise be serviceable to snuff a little of the AETHER up
the Nostrils, either alone or mixed with equal Parts of Lavender
Water, _Hungary_ Water, or Brandy; or it may be more convenient to
apply a bit of Linen Rag, wetted with AETHER, up the Nostrils. Any
of these Means, or all of them, must be repeated if the Pain is so
urgent as to re