246 



DISEASES DUE TO HELMINTHS 



These bleed readily and cause hcematuria. 



Many eggs become surrounded by connective tissue and calcify^ 

 forming sandy patches, and cause atrophv of the mucosa. 



Ova of Schistosoinuiii japonicuin in biliary ducts, \ objective. 

 (By Bell and Sutton, Hongkong.) 



Section of intestine, showing ova of Schistosotnum japoniciim, x 250. 



(By J. Bell, Hongkong.) 



The urine collects in the bladder depressions, decomposes, phos- 

 phates form, and a further phosphatic incrustation lines the bladder 

 wall more or less in patches. 



