SECTION IV 
DISFABES OF THE RESPIRATORY PASSAGES Anu 
ORGANS. 
TmronraNce oF VENTILATING StaBLEs—Briger Exposition AND DgscRIPTION O% 
THE FUNCTION oF THE Lunas—SpasM or 19% MuscLEs OF TEE GLOTTIS AND Epr- 
GLoTT18— Larynaitis, (SUPPURATIVE AND INFLAMMATORY )—CROUP—CHRONEIt 
CovaH—Roarine—PoLyPus—BRONCHOCELE—INFLUENZA, OR Epizoorio Ca- 
TARRH—PNeUMONIA, OR INFLAMMATION OF THE LUNGS, INCLUDING TYPHOID 
Arrsctions, PLeuriwy, AND Dropsy or THE CHEst. 
, 
IMPORTANCE OF VENTILATING STABLES, IN VIEW OF 
PREVENTING DISEASE OF THE LUNGs. 
T was the intention of the Creator thet all animals, so long aa 
they were permitted tu exeruise their natural instincts, and 
thus comply with the requirements of physiology—the science of 
life—should enjoy health and long life. Hence a great amount 
of disease and death results from the evils of domestication, 
One of the conditions which physiology imposes, in order that 
1 horse shall enjoy health, is, that the atmosphere, at all times, 
ind under all circumstances, shall be uncontaminated, so that the 
blood shall be decarbonized and purified of the defiling elements 
acquired in the course cf circulation. 
Let the reader understand that the lungs are something like a 
sponge, elastic, composed of 2 myriad of cells. In the former, 
however, these cells have a vast internal surface, communicating 
with each other up to their common origin, the bronchial tubes 
and windpipe. On their internal surface we find a delicate yet 
high], important membrane permeable to atmosphere, In extent. 
it is supposed to occupy a square surface equal to that of the ex- 
ternal body. In contact with this membrane comes the atmos- 
phere. 1f pure—zephyr-like—it fans into healthful blaze the 
flame of life, upheaving from the living Vesuvius arid lava, in 
(RA, 
