234 THE FARMER S VETERINARIAN 



At the same time use the following medicine to 

 improve the kidney action: One-fourth pound of 

 saltpeter or nitrate of potash and one-fourth of a 

 pound of gentian root. These are to be mixed well 

 together and a teaspoonful given three or four 

 times daily. Soft foods are desirable. A small 

 amount of water should be given frequently. Small 

 quantities at a time are preferable to large quantities 

 at infrequent intervals. 



PLEURO-PNEUMONIA.— This is a very con- 

 tagious disease of cattle introduced in this country 

 from Europe. At one time it was a very serious 

 menace to the cattle industry. Thanks to the very 

 aggressive work of the United States Department 

 of Agriculture, the disease has, so far as is known, 

 been eradicated from this country. No cases of the 

 disease have been reported during the past dozen 

 years. 



PNEUMONIA.— See Inflammation of the Lungs. 



POLL EVIL. — A swelling or soreness at the top 

 of the head. Usually it is caused by an injury, like 

 bumping the head in a doorway, or from a bruise 

 made by the halter or bridle. It is first noticed by 

 a swelling or soreness, which frequently causes 

 trouble by forming an abscess ; sometimes this 

 works down and even affects the bone. Treatment 

 is very simple if handled in time. Remove the 

 cause and then bathe with warm water and vinegar 

 twice a day and apply a liniment of some kind. If 

 the abscess is formed, it should be opened with a 

 knife at the lowest point to remove the matter. 

 From now on for a few days bathe the opening with 

 warm water in which has been added some carbolic 

 acid or creolin. If the case causes much trouble, you 

 had better consult a veterinarian, as bad cases fre- 



