ANATOMICAL CHARACTERS. G77 



when speaking of this condition as seen in constipation, for 

 collections of the large ascarides. Occasionally we find the 

 changes not so uniformly diffused, but scattered over isolated 

 portions of the bowels ; and although the colour of the parts 

 invaded is not materially altered, the physical characters are 

 somewhat different. The increase in bulk or thickness may not 

 be so great ; the tissues are, however, more resistant to the 

 touch, and after some time paler in colour. 



In those numerously occurring cases of inflammation of the 

 intestines associated with the varying forms of certain fevers, 

 as influenza, the course and termination of the morbid process 

 is considerably different. In these the action is exceedingly 

 variable, marked in some by extensively distributed sero- 

 htemorrhagic eftusions in the submucous tissue ; in others, 

 where less extensive, showing only moderate effusion into the 

 underlying structures, with an occasional patch more distended 

 than the rest, in the centre of which a spot or sore exists, 

 undergoing removal of tissue. Or with a somewhat similar 

 condition of the entire structures pustules may show themselves 

 projected from circumscribed inflammatory patches in the 

 submucous structures. Or the appearance may be that of a 

 very general change and removal of both epithehal covering 

 and limitary membrane, the whole showing a peculiar granular 

 or oatmeal appearance over the surface. Others, again, exhibit 

 in the midst of slightly hyperoemic surroundings, or of tissues 

 perfectly normal, a sharply defined patch or patches of varying 

 size of a coal-black appearance. 



Where the morbid action has partaken more of a truly 

 catarrhal character, or where the course has not been marked 

 by symptoms usually indicative of the inflammatory process, 

 iind where considerable progress has been made before life 

 seems endangered, another class of changes may present them- 

 selves. 



In these the changes have evidently been early and con- 

 tinuously associated with the ultimate elements of the tissue 

 invaded. Here the epithelium of the mucous membrane 

 undergoes such changes as disturbs or destroys the cohesion 

 of the cell-elements, which become detached and are shed or 

 thrown off, with the extra liquid existing, as varying forms of 

 pus-cells. Along with these changes on the surface of the 



