CHAP. X FOWL ENTERITIS— NATURE OF DISEASE 87 



those experimental fowls which I afterwards had 

 occasion to examine, presented the same kind of 

 post - 7nortein appearances : the heart was full of 

 coagulated blood ; this condition of the blood was 

 noticed very soon (^-i hour) after death. The lungs 

 in all animals were normal, no congestion, no haemor- 

 rhage ; the intestines showed redness in the mucous 

 membrane and in the serous covering, but there was 

 no haemorrhage anywhere ; in the caecal appendages 

 there was a good deal of mucus, either in the form 

 of flocculi or as continuous yellowish, greyish, or 

 brownish masses ; the rectum contained greenish- 

 yellow fluid faecal matter. The spleen was enlarged 

 to twice or thrice its normal size, but its substance 

 was not excessively bloody, since from a cut surface 

 there was not that oozing out of sanguineous fluid 

 commonly observed of a hyperaemic spleen. The 

 liver was somewhat enlarged, soft, and flabby, there 

 were no haemorrhages ; the surface of the liver and 

 of the peritoneum was moist, occasionally there was 

 a small amount of exudation, but no haemorrhages. 

 Examining the fresh blood, it was at once noticed 

 that though bacteria could be found here and there 

 in each field of the microscope, they were very few 

 and far between, one or two small rods only being 

 met with in one field. Making cover-glass specimens, 

 and, after drying and staining, examining them under 



