SECTION IV 



DISEASES OF THE RESPIRATORY PASSAGES AH*. 



ORGANS. 



* - 



Impohtaxce of Ventilating Stables — Brief Exposition and Description oj 

 THE Function of the Lungs — Spasm of the Muscles of the Glottis and Epi- 

 glottis—Laryngitis, (Suppurative and Inflammatory) — Croup — Chromio 

 Cough — Roarino— Polypus — Broxchocele — Influenza, or Epizootic Ca- 

 TABRH — Pneumonia, or Inflammation of the Lungs, including TrPHoro 

 Affections, PLEURrtT, and Dropsy of the Chest. 



Importance of Ventilating Stables, in view op 

 preventing disease of the lungs. 



IT was the intention of the Creator that all animals, so long aa 

 they were permitted to exercise th«ir natural instincts, and 

 thus comply with the requirements of physiology — the science of 

 life_ghould 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 

 ? horse shall enjoy health, is, that the atmosphere, at all times, 

 \ nd under all circumstances, shall be uncontaminated, so that the 

 blood shall be decarbonized and purified of the defiling elementa 

 acquired in the course cf circulation. 



Let the reader understand that the lungs are something like a 

 sponge, elastic, composed of a 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 

 ana windpipe. On their internal surface we find a delicate yet 

 highly 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 come» the atmos- 

 phere. If pure — zephyr-like — it fans into healthful blaze the 

 flame of life, upheaving from the living Vesuvius arid lava, in 

 (86) 



