NONCONTAGIOUS DISEASES OF RESPIRATION ORGANS. 97 



Bleeding from the lungs comes from both nostrils and from the 

 mouth. The blood is bright red, frothy, and accompanied by a cough, 

 the flow being somewhat profuse and intermingled with mucus. It 

 may cease of its own accord. Internally hemostatics are indicated, 

 and locally over the sides cold applications have a tendency to check 

 the hemorrhage. Give the animal a drench composed of 1^ drams of 

 gallic acid dissolved in a pint of water. 



AESCESS OP THE LUNG. 



Abscesses of the lung sometimes form during the course of or sub- 

 sequent to tuberculosis or other diseases. An animal affected with 

 abscess of the lung usually has a protracted, feeble cough and a gen- 

 eral appearance of emaciation and anemia. The pulse is feeble and 

 the breath foul. An offensive discharge from the lungs frequently 

 occurs. Percussion and auscultation will aid in making a diagnosis 

 in this condition. The appetite is poor. Such animals go from bad 

 to worse, and their prompt destruction would, as a rule, be to the 

 interest of the owner. 



HYDROTHORAX. 



Hydrothorax, or dropsy of the chest, is not a disease in itself, but 

 is simply a condition where an effusion takes place in the chest cavity, 

 and is the result or effect of some disease, mostly pleurisy. This con- 

 dition can be easily diagnosed by physical signs. A loss of the res- 

 piratory murmur will be noticed on auscultation, and on percussion 

 dullness or flatness on a line as high as the effusion has taken place. 

 When there is a large amount of effusion present^ tapping with the 

 trocar and canula is generally resorted to. The proper method of per- 

 forming this operation will be found under the head of "Pleurisy." 



PNEUMOTHORAX. 



An accumulation of gas in the pleural sac is known as pneumo- 

 thorax. The presence of air may either result from an injury of the 

 lung or a wound communicating from the exterior. The indications 

 for treatment are to remove any foreign body that may have pene- 

 trated, to exclude the further entrance of the air into the cavity by 

 the closure of the external opening, and to employ antiseptics and 

 adhesive dressings. The air already in the cavity will in most cases 

 be absorbed. 



VERMINOUS BRONCHITIS. 



This is a disease that sometimes attacks young cattle when pas- 

 tured in low-lying meadows near rivers subject to flood. It is caused 

 by a small worm, Strongylus micrwus, which lodges in large num- 

 bers in the trachea and bronchial tubes, giving rise to considerable 



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