106 CLINICAL DIAGNOSTICS. 



(fuchsin 1, absolute alcohol 10, carbolic acid 5, aq. dist. 95), and 

 heated repeatedly for about two minutes over a flame. Wash 

 and drain. Gabbet's solution (methylen blue 2. in 100 grammes of 

 a 25% sulphuric acid) is then applied and allowed to remain Yi 

 minute. Wash and examine. 



Fig. 29. 



) 





' '^-^i- 



Tubercle bacilli. 



_ Besides the tubercle bacillus, other bacilli (acid-fast), which 

 stain by .this method, are found in the feces of cattle and in butter. 



IV. The Nasal Cavities and Adjacent Sinuses. 



The external appearance of the facial bones will readily 

 betray any deformity. Circumscribed enlargements are 

 due to tumors and a bulging of the sinuses in chronic catarrhs. 

 Diffuse enlargements attend rachitis and osteoporosis, "big 

 head." Depressions have a traumatic origin. Swellings 

 appearing at the nasal openings and nostrils are common in 

 purpura hemorrhagica. Tumors (atheromas) are frequent 

 in the false nostril. 



The specific pathological conditions 

 which occur about the lips and nose are the pustules and 

 ulcers which attend contagious stomatitis, the pox pustules of 

 sheep pox, and the vesicles on the muzzle of the ox and snout 

 of swine suffering from foot and mouth disease. 



When a nasal discharge has existed for a long time, the 

 integument of the nose and lips over which it flows loses its 



