MOIROUn’s VETERINARY MATERIA MEDIC A. 5S0 
One of the Editors, Mr. Youatt, may be permitted to state, 
that, being now permanently engaged in giving instruction on the 
structure and diseases of all domesticated animals, it will be de¬ 
sirable for him to add to his collection of morbid specimens, and 
particularly to possess those which town practice will rarely afford. 
For any of these which would be useless to, or which would not 
be preserved by any practitioner who reads The Veterinarian, 
he would be very thankful. He would gladly pay the expense of 
carriage, or expense in any other w 7 ay incurred ; and the specimens 
should find a place in his museum, or rather in that of the Uni¬ 
versity of London, with the name of the presenter, and many 
grateful recollections attached to them. Specimens of the hydatid 
in the brain of sheep, or larvae in the frontal sinuses, or worms in 
the trachea or bronchial passages of cattle, or visceral inversion or 
strangulation; or, indeed, any thing that illustrates either patho¬ 
logy or physiology, would be acceptable; and a little history of 
the case would complete the obligation. 
. .... . .—' — -----: 
ttrmrUh 
Quid sit pulchrum, quid turpe, quid utiie, quid noil.—H or. 
Traite Plementaire de Mature Medicate et Pharmacologie 
Veterinaire; par M. Moiroud. Paris, 1831. 
[Continued from page 468.] 
Third Class of General Excitants;— medicines that 
increase the contractility of the fibre, and strengthen the tissue 
of the organs. 
Astringents — Styptics. 
Astringent medicines have a near relation in their manner 
of action to those which we have considered, inasmuch as they 
increase the tone and density of the organic tissues; but their 
immediate effects, in some sort more material, are distinguished 
from those of the tonics by a contractility of fibre, and other 
changes that will be presently mentioned. 
The first effect of an astringent is that of a stimulant, but ge¬ 
nerally local and transient, and which is often followed by a want 
or cessation of action of variable duration. Astringents, long con¬ 
tinued, blunt the sensibility, and that by the contraction of the 
muscular fibre. 
VOL. iv. 4 L 
