Some four years ago, I looked up 100 cases that had presented hematuria as a prominent symptom. I was startled to find that, in 64 per cent, of these cases, the bleeding was caused by a new growth of some sort, of the prostate, of the bladder, or of a kidney. Few, I think, will care to consider a symptom unimportant that indicates so serious a type of disease in so large a proportion of cases.
For the present communication, I have gone over another series of 100 cases of hematuria to see how they compared with those reported previously: in this series, I have tried to do as I did before, that is, to take consecutive cases so far as I could. I have found it quite impossible to do this absolutely, since, in a certain number of patients who presented hematuria, I was unable, for one reason or