128 DISEASES OF THE RESPIRATORY ORGANS. 



putrid, for in the dog it is almost impossible to get any of the 

 discharge that is coughed up, the animal generally swallowing the 

 mucus. When the animal has a putrid breath we always find a 

 course of alarming symptoms accompanying it — septic fever, chills, 

 and a high temperature. If the sputa were examined, we would 

 probably find numerous micrococci, bacteria, and portions of 

 broken-down lung and elastic tissue. 



OEjdema of the Lungs. This is apt to follow all debilitating 

 diseases that weaken the left side of the heart, and that organ is 

 unable to force the venous blood through the lungs. There is a 

 regurgitation of the blood, and the alveoli and bronchia become 

 filled by a serous fluid which exudes from the bloodvessels. 



The oedematoLis lung is distended and much larger than normal; 

 on pressure with the finger the indentation remains some time. 

 On section of the lung a large quantity of reddish foamy fluid 

 exudes from the tissues and the bronchial tubes. 



When oedema of the lungs follows catarrhal pneumonia it gen- 

 erally begins with great difficulty in respiration, labored or ster- 

 torous in character, a short, faint cough, and in rare instances a 

 quantity of thin reddish fluid comes from the nose or mouth. On 

 making a physical examination, percussion gives no results but 

 those found in catarrhal pneumonia. On auscultation we hear 

 rattling bruits all over the chest, especially in the anterior part, 

 and also in the trachea; the blowing sounds may be very loud 

 in some cases and can be heard some distance from the animal. 

 Death occurs in a short time. Some time before the actual symp- 

 toms of oedema appear the exhausted condition of the heart is in- 

 dicated by the pulse being irregular — that is, weaker at inspiration 

 than at expiration. 



Therapeutics. In treating lobular pneumonia we use the 

 same general course as we do in bronchitis. The author obtained 

 the best results with Priessnitz' s compress, and by the remedies 

 recommended under the treatment for bronchitis. The good effects 

 of moist, warm compresses can be much increased by sharp friction 

 with a small quantity of mustard-oil to the sides; but it must only 

 be applied in young, strong, healthy animals. The best method 

 of application is to make a liniment of 3 parts of oleum sinapis tethe- 

 reum in 45 parts of olive oil, and divide it into two parts, and 

 apply one-half to each side of the chest, then wind a dry bandage 



