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INTESTINAL CONCRETIONS. 



remarkable instance of the coalescence of pbosphatic and 

 oat-hair concretions. 



The non-scientific usually imagine that intestinal concre- 

 tions are stones swallowed by animals. I can record a case 

 in which a common marble was the cause of a dog's death. 

 I was asked to examine a terrier dog last autumn, with the 

 not uncommon declaration, that the animal must have been 

 poisoned, as it had died so suddenly and in such violent pain. 

 On opening the abdomen, I observed a solid spherical mass 

 distending the duodenum about two inches from the pylorus, 

 and it turned out that this was a marble which the animal 

 had swallowed when with some children who were playing 

 at marbles. 



