24 DISEASES OF S^^NE AND OTHER ANIMALS. 



Septcmher 25. — Piii' ISTo. shows slightly increased appetite, and fully 

 as mucli, if not more, liveliness than on any day last week. It almost 

 seems as if some leal improvement is ji'oiny; on, notwithstanding- very 

 serious morbid changes must have taken place. 



Septemher 20. — Pig No. eats some in the morning, but does not seem 

 to care for any food at noon ; ajiiiears to be a trifle bloated ; droops its 

 head, and holds its nose to the ground. 



September 27. — Pig No. 6 decidedly worse ; breathes seventy-two times 

 per minute; head drooping; nose to the ground; back arched; skin 

 very dry and liard to the touch ; no appetite whatever. 



Beptemher 28. — Pig No. 0, which was very low last night, has some- 

 what recuperated, and is moving again ; consumed some water, and also 

 a little food. 



September 20. — Pig No. G exceedingly emaciated and very weak; 

 breathes thirty-eight times per minute ; holds its nose persistentl.y to the 

 ground, and has no appetite whatever. 



Beptemher 30. — Found pig No. G, at 7 o'clock a. m., lying dead in a 

 corner of its stj'. (See chax)ter on Morbid Changes as to result of j;o.s^ 

 mortem examination.) 



It may be well to add a brief account of the symptoms and the prog- 

 ress of the disease, as observed in experimental pig B, a sow pig, 

 about fourteen weeks old, and of mixed Poland China and Berkshire 

 stock. Pig B was put in pen No. 3, together with pig No. C, on Sep- 

 tember 24. The same was and remained perfectly healthy until Octo- 

 ber 2, when the first symptoms of disease made their appearance. I 

 find in my diary the following notes : 



October 2. — Pig B shows symptoms of sickness ; sneezes ; has an erup- 

 tion on both ears ; is not quite as lively as it used to be ; appetite is 

 diminished ; curl is out of its tail. 



October 3. — Pig B has but little appetite ; is decidedly sick. In after- 

 noon shows unmistakable symptoms of sickness ; ears are drooping ; no 

 appetite; great tendency to lie down in a corner; hides its nose in the 

 bedding. 



October 4. — Pig B about the same as yesterday ; has eaten a little. 



October 5. — Pig B hides its nose in the bedding ; has no appetite what- 

 ever ; emaciation has taken place. B, although a week ago a better and 

 heavier i)ig than C, a full sister, and of the same litter, is now consid- 

 erably lighter. 



October 7. — Pig B very sick ; still, seems to have a desire to eat, but 

 takes hold of an ear of corn so feebly as to make it appear that it has 

 not sufficient strength in the jaws to shell the corn; gave it, therefore, 

 shelled. 



October 8. — Pig B very sick ; hides in its corner ; ears are cold ; other 

 parts of the body warm; no appetite; great indifference to siuTOund- 

 ings; emaciation rapid. 



October \). — Pig B about the same as yesterday. 



October 10. — Pig B is getting worse; does not eat anything. 



October 11. — Pig B found dead in its ])en in the morninj;-. 



These three cases show that the sym])tonis vary in dilferent cases, 

 and that those which are constant can scarcely be considered as very 

 characteristic. Still, if the various symptoms ])resented by an indi- 

 vidual animal are taken as a whole, a diagnostic mistake is scarcely 

 I possible. 



The diagnosis is v(>ry easy, especially if swine-plaguc is Icnown to be 

 prevailing in tlie neighborhood, or has already made its a])pearance in 

 the herd, and if tlie anamnesis, and the fiiet that many animals are 



