16 DISEASES or SHEEP. 



subject to inflammation, although such inflammation ap- 

 pears in the different parts of the body in as many different 

 symptoms. Some of these parts are more vehemently and 

 oftener inflamed, and others less ; and the occurrence of 

 such different symptoms may be explained by the following 

 examples : 



I. Increased redness occurs always wherever a healthy part 

 becomes afflicted with disease, this being the consequence of 

 an increased accumulation of the blood in such parts, which 

 in a healthy state contain no blood at all, but are now ex- 

 tended and filled with globules of the blood ; and the larger 

 veins receive larger quantities of blood and begin to swell. 

 There are a great many different degrees in the increase of 

 redness, the color of such inflamed redness changing from 

 pal^ pink to cherry-red and even blackish-red. In those 

 parts where the construction is of a spongy or loose nature, 

 and which in their healthy state already contain a great 

 many blood-vessels, and consequently always appear of a 

 more or less reddish color (as, for instance, the mucous 

 membranes of the nose, the external membranes, the lungs, 

 etc.), a more conspicuous and intensive redness is produced 

 by inflammation than in other parts of a stronger and solid 

 constitution, which do not contain as many blood-vessels 

 (as, for instance, the bones, the cartilages and the trans- 

 parent part of the eyes). The redness is not always of 

 the same intensity during the progress of inflammation. 

 In the beginning the redness increases with the develop- 

 ment of the disease, and also disappears with the decrease 

 of the latter, with more or less rapidity. When inflamma- 

 tion occurs in sheep, the increase of redness is not always 

 perceptible. The compactness of the wool, especially that of 

 black sheep, the darkness of the color of the skin, prevent 

 the inexperienced eye from observing such increase. The 

 same may be said in regard to the intestines and all other 



