INK. } 160 
INHALATIONS. 
Y 
-- These are the vapours of heated, simple, or 
medicated fluids—of certain aetherial medicines— 
of fragrant and stimulating balsams, gums and 
resins—the vapour of fused nitre—and the fumes 
of narcotic drugs. The emollient and medicinal 
principles of some of these, and the volatile stimu- 
lus of ‘others, are conveyed to an immediate 
contact with the bronchia and cells of the lungs, 
by the voluntary augmentation of the force of the 
respiratory efforts, through the deep inspirations of 
which the subtle vapourable principle is drawn 
into every part of the cellular structure of the 
lungs; or, admitted less freely, by directing the 
vapour towards the mouth and nose, during 
ordinary breathing. When diaphoresis is desired 
as an effect of these inhalations, the ordinary ov 
forced respiration is performed under a cover which 
envelops the head and the vapourable remedy. A 
common tea or coffee pot, containing the heated 
fluid, is often used—the patient inh ing the va- 
pour by the spout. Several kinds of apparatus 
have been devised expressly to administer these 
aeriform remedies, among which, the best is that 
contrived by Dr. Mudge, who wrote on catarrh, 
which he proposed to cure by these remedies. It 
is called “ Mudge’s Inhaler.” 
Heated bricks are also used to vaporize watery 
fluids. When resins, balsams, or odoriferous 
§ums and substances of asimilar nature are used, 
