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MR. F. CBACE CALVERT ON A CASE OF POISONING 



** The stomach, which had been previously laid open, pre- 

 sented nothing worthy of remark, excepting a trace of 

 arborescent vascularity in the sub-mucous tissue. The 

 mucous membrane could not be easily stripped off. 



" The intestines externally presented no unusual appear- 

 ances except in five places, all of which were confined to 

 the jejunum ; in each of them the uniform purplish red hue 

 of the peritoneal covering was changed to a dirty opaque 

 white, studded with minute flocculent-looking brownish 

 spots. The form of each was oval, with the exception of 

 the second in order from the stomach, which had two 

 pointed extremities. They equalled in size a half-crown 

 piece, some more, some less, and were all situated on the 

 free border of the intestines, none reaching around or 

 across the entire circumference. The margins of the spots 

 were very distinct, with the exception of the last ; and at 

 first sight the spots seem to have been produced by a fold 

 of the intestine having rested against the dry surface of the 

 glass jar in which they had been kept, by which the blood 

 had been pressed out from them. On extending the peri- 

 toneal coat, however, it was evident that such was not the 

 case, for each spot was found to be encircled by two distinct 

 rings of different colours ; the first was very slight and red, 

 and the second, which was a quarter of an inch in breadth, 

 was of an ivory white colour. The white colour was shaded 

 off evenly, but abruptly, towards the uniform general redness 

 of the parts not marked ; the shading did not occupy more 

 than one-eighth of an inch. 



"Internally, the folds of the mucous membrane (valvula 

 conniventis) were every where of a deep purplish red colour, 

 excepting in the parts corresponding to the external mark- 

 ings, from which the colour had been discharged. The 

 mucous membrane in consequence, over a space equal to the 

 whole of the external marks, was whitish, and the shading 

 off was so gradual as to extend at least a quarter of an inch 



