According to Ettmuller,1"there may be suppression of urine for ten or eleven days before death, sometimes they live to the fourteenth, seldom to the twentieth; but if there be large sweat they may survive longer." Sir William Roberts2states that the "duration of life for fifteen days is remarkable," while Ransohoff3believed that "death follows from uremia in five to twenty-five days, unless the obstruction is released spontaneously or by operation." In an extensive survey of the literature, I have collected reports of nineteen cases of complete anuria with a duration of from twenty to twenty-nine days. There were two cases reported of twenty days;4five of twenty-one days;5one of twenty-two days;6two cases of twenty-three days;7one of twenty-four days;8two of twenty-five days;9three of twenty-seven days,10and three of twenty-eight days.11Among the fatalities