VACCINE-THERAPY 173 



animal, in an advanced case, may have a staggering gait. 

 This must not be confused with the rocking motion due to 

 weakness and inertia ; epileptiform movements may also 

 be noted — the animal may shake its head, or hold it to one 

 side. Blindness may be total or partial; one ear may be 

 drooped. The animal may be excited and nervous, or the 

 opposite, much depressed, and semicomatose; muscular 

 tremors may also be present, and there may be partial or 

 complete paralysis. 



Tuberculosis of the Lymphatic Glandular System. 



When the disease exists in any organ or organs, the 

 neighbouring lymphatic glands are always more or less 

 involved. These glands sometimes swell to a great size. 

 Where the prebronchial and mediastinal lymphatic glands 

 are infected and enlarged, as we have seen, pressure upon 

 the gullet interferes with deglutition, rumination, and con- 

 sequently digestion. The mesenteric glands also being 

 diseased must interfere with assimilation, and can some- 

 times be diagnosed through manipulation per rectum. 

 When the laryngopharyngeal glands are involved, dis- 

 tension of that region is noted; also difficulty in swallowing, 

 and, may be, stertorous breathing, with a more or less 

 virulent nasal discharge, protrusion of the nose, etc. These 

 glands we have often found, by passing into their centres 

 a small, sharp lancet, to undergo rapid calcareous degenera- 

 tion, which, if the lancet is rotated, demonstrates a distinct 

 gritty feel, giving good diagnostic proof of the nature 

 of the condition. 



The prescapular gland may become an enormous size, 

 and show itself as a floating tumour. When this growth 

 has also been cut into prior to or after removal, the same 

 calcareous changes often present themselves. 



The precrural and inguinal glands become often in- 

 volved, and in making a clinical examination should 

 be looked for and manipulated — in fact, enlargement 

 of any of the lymphatic glands affords important assistance 



