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288 DENTAL MEDICINE.

patient. Some nitrite of amyl was then poured on lint, and held
to the patient's nostrils. In ten seconds there was a flushing of
the face, the pulse was again felt, and respiration was restored.
When from two to five minims are poured on lint and applied
to the nostrils, the heart's action will be accelerated, a sudden
flushing of the face takes place, dilatation of the arteries results,
also a fall in the blood pressure and a lowering of the temperature,
and complete muscular relaxation. As a remedy for chloroform
narcosis, it is supposed to antagonize cerebral anemia by causing
capillary dilatation and thus promoting the inflow of blood to the
brain.
By inhalation, for relieving the pain of angina pectoris, and
preventing epileptic seizures; also used in asthma, strychnia
poisoning, hydrophobia, tetanus, epileptic attacks, and in many
other convulsive or spasmodic diseases.
Dose.—Of nitrite of amyl, TTlij to Hlv, by inhalation ; not
more than KTliij should be administered, unless the patient has
been accustomed to its use.
Dental Uses.—As an antidote for chloroform narcosis, for the
relief of eipileptic attacks during the extraction of teeth, for
relieving the pain of neuralgia of the fifth pair of nerves, and for
restoration from syncope. As nitrite of amyl is a powerful and
dangerous agent, care must be observed in its use, and but small
doses applied at first, as some patients, especially the weak and
nervous, are very susceptible to its influence.

ANTHEMIS—CHAMOMILE.
Source.—The flowers of the Anthemis Nohilis. A German
variety is known as Matricaria., which is similar to Anthemis
in its effects. The herb chamomile has a fragrant odor and a
bitter, aromatic taste. A volatile acid is obtained from
the flowers, which is similar, if not identical, with valerianic
acid.
Medical Properties and Therapeutic Uses.—Chamomile is a
mild tonic in small doses, but in large doses may act as an
emetic. It is used in the form of a cold infusion in enfeebled
digestion, flatulent colic and infantile disorders connected with