172 DISEASES OF THE HOG. 



remain so, causing stiffness of the joints. In the 

 muscular form, as well as in the articular, the 

 disease may extend to several muscles or may be 

 limited to one. It very frequently involves several 

 in the same neighborhood and concerned in the 

 same action. There may or may not be inflamma- 

 tion, or only an irritation causing soreness and 

 stiffness with little or no swelling. If inflamma- 

 tion is present there will be pain, swelling and red- 

 ness, causing high fever. This variety of rheuma- 

 tism is not confined to the muscles and joints, but 

 may affect any tissue of the body. There is reason 

 to believe that it sometimes attacks the nervous 

 sheaths, producing severe pain along their course 

 or may extend to the nerves themselves, producing 

 spasms of the parts. There is no doubt but that 

 many of the severe complicated nervous disorders, 

 both of external and internal parts, connected with 

 tenderness of the spinal column and the marrow, 

 causing paralysis of the hind legs, are due to sub- 

 acute rheumatism. In some forms of rheumatism 

 ithere is a great tendency for it to shift from one 

 joint to another or frgm one part of the body to 

 another. This form is less likely to cause bad re- 

 sults, as it is only an irritation and not inflamma- 

 tory, Kheumatism is liable to attack any organ 

 of the body, such as the heart, lungs, pleura, dia- 

 phragm, abdomen, stomach, liver, kidneys, bowels, 

 etc. Rheumatism in the acute or subacute form is 

 not a fatal disease unless it affects some of the in- 

 ternal organs, especially the heart, but it is apt to 

 leave complications, especially is this the case 



