202 Rkport .S.A.A. ADVANCiniEXT OF Science. 



Lymqyhatic Glnnrh. — Enlarged, friable and in many eases hremoiT- 

 hagic. 



The Atvpical Cash:. 



lu addition to the post uiorteni appearances given, i.e. the lesions 

 in spleen, liver, kidney and heart (which are generally present), the 

 respiratory tract may be the seat of the disease. The lining membrane 

 of the nose (schneiderian membrane) is pui'ple, dusky red or dull blue 

 in hue, the pharynx ditto, the trachea or wind-pipe filled with a thick 

 froth, and the lungs filled with a clear straw-coloured exudate, and 

 showing much emphysema, so much in some cases as to dissect out the 

 lobules of the lungs. 



The lungs are heavy, darker in colour than normal, and on cutting 

 into the substance, froth and this clear fluid exudes. 



A clear straw-coloured jelly like exudate is around the base of the 

 heart and enveloping the l)ronchial lymphatic glands, which are nmch 

 enlarged, and the exudate extends some distance up the neck in the 

 jugular furrow. 



Frequently there is a similar exudate around the lower end of the 

 rectum and bladder, mesenteric and pelvic lymphatic glands are much 

 enlarged, ha?morrhagic and friable. 



In such a case as above one frequently notes froth issuing from the 

 animal's nostrils immediately after death, preceded by a clear reddish 

 yellow tiuid. 



The two modifications of the disease are quite mixed up, ai\d it 

 is generally impossible, except in rare cases, when an animal is sick 

 and dying, to say whether the lungs are affected or not, and in a span 

 of oxen dying from the disease half only may show lung lesions on 

 post mortem, or the whole lot may die and not one show anything^ 

 abnormal in the respiratory apparatus. The number of the animals 

 which succumb to the disease showing lung lesions on post mortem we- 

 should estimate at from 30 to 3-3 per cent. Thomas Bowhill, F.R.C.V.S., 

 in his article on the "Southern Cattle Fever," which appears in his 

 marmal of Biwtp.riohxjical Tfc]mi<fH(', diaws attention to the appearance 

 of this same exudate in cases which he has met with in Calif<irnia, 

 where severe lesions in the intestine are also to be met with, including 

 the lesions on the mucous membrane of the fourth stomach. 



"The lungs in some cases were emphysematous. . . . Pleurisy was- 

 present and some infiltrations and h;emoriliages were sometimes found 

 beneath the skin of the lower jaw and neck.'" 



ft is worthy of note that when the exudation of straw-coloured 

 Huid is preceded by emphysema of the lung, it is along these emidiyse- 

 matous lines that the exudate travels, the apices and upper parts of 

 the lungs being the parts first and usually affected, although it might 

 have been expected that the exudate would gravitate to the lower 

 borders of that organ. 



After carrying out the inoculation experiments referred to, the 

 inoculation of other Goxernment stock was undertaken h\ Mr. Robert- 



