58 THE PRACTICE OF VETERINARY MEDICINE. 



is carried to a particular part, and there remains ; no part 

 of the animal's body is secure from parasitic invasion. 

 The above-mentioned parasites are developed to a con- 

 siderable extent in the lungs. This disease prevails on 

 both sides of Lake Erie, and to a considerable extent in 

 the State of Ohio, and the dominion of Canada. It is most 

 common in low lying districts, and in wet weather, every 

 now and then during wet seasons, well marked outbreaks 

 of the disease occurring. 



Symptoms. — Frequently the first symptom noticed is the 

 peculiar cough, which becomes increased in frequency and 

 severity, by excitement, or exertion on the part of the 

 patient. The circulation is not affected much. The 

 appetite is impaired, and there is a discharge from the 

 nostrils. Sometimes the parasites may be readily detected 

 with the naked eye, and by the use of the microscope can 

 in all cases be discovered in the discharge. 



Treatment. — Change the animals to a higher and dryer 

 locality, and use remedies to destroy the parasites, as ol. 

 terebinth sij., ol. lini. 5viii. The inhalation of chlorine 

 gas will also kill the parasites. Place three or four of the 

 affected animals in a loose box ; the chlorine gas may be 

 generated by pouring sulphuric acid over a mixture of 

 sodium chloride and manganese black oxide. When the 

 animals begin to cough, liberate them. Sulphurous fumes 

 are also very safe and effectual. Afterwards give a 

 generous diet, pure water, tonics, etc. 



INFLUENZA. 



Definition. — Influenza may be defined to be a disease of a 

 specific character, showing well-marked catarrhal and febrile 

 symptoms, and often involves many organs of the body, as 

 lungs, heart, liver, respiratory system, and the fibrous tissue 

 of various parts of the body. It is due to the presence of a 

 poison in the blood, but it is difficult to say what that 



