108 ROARING. 
licensed. Were the mass properly informed, the hooting of the popu- 
lace would soon drive fashion into a more humane usage. 
THE HEALTHY LARYNX. THE EFFECT PRODUCED BY THE BEARING-REIN. 
1. The thyro-hyordeus muscle. a. The healthy arytenoideus muscle. 
2. The crico-thyroideus muscle. b. The healthy crico-artenoideus posticus muscle. 
3. The arytenoideus muscle. A. The arytenvideus muscle paralyzed and par- 
4. The crico-arytenoideus posticus muscle. tially absorbed by the constant use of the 
a. a. The thyroid bone. bearing-rein. 
A. The epiglottis (a cartilage.) B. The crico-arytenoideus posticus muscle ren- 
B. The arytenoid cartilages. dered pallid, and deprived of puwer by the 
C. The thyroid cartilage. use of the bearing rein. 
D. The cricoid cartilage. 
E. E. E. The commencement of the trachea. 
The left engraving represents the larynx in a state of health. The 
larynx is the most sensitive organ in the body. If a crumb of bread, a 
particle of salt, or a drop of water “go the wrong way,” or enter the 
larynx, everybody has felt the convulsive coughing that immediately 
ensues. Yet this larynx, so exquisitively sensitive, and so resentful of 
the lightest touch, is forced out of place and shape by the adoption of 
the bearing-rein. The whole weight of the head is made to press against 
the larynx; the action of the part is stopped; certain muscles are thrown 
out of use. Now, doom a part to constant rest, and paralysis soon 
results. This is exactly what follows the often long stoppage of that 
freedom which is necessary to the health of any structure. Certain of 
the muscles are absorbed; they lose their bulk and part with their color; 
their function is destroyed: the consequence is, the horse becomes a 
confirmed and an incurable roarer. 
So fearful a result, as a life of anguish to any creature, might be 
thought sufficient to amend a triviality like the whim of fashion. Still, 
sad as that consequence is, it is not all which this folly engenders. 
The larynx, sensitive and delicately constructed, is formed upon dif- 
ferent pieces of cartilage. This substance is slowly organized and very 
yielding. The structures of the youthful horse’s frame are not con- 
