It was said that a vesical calculus was seen in a dead boy at St.Edmund's which was as large as the head of a new-born child.
It has been remarked that Thomas Adams, Lord Mayor of London, who died at the age of eighty-two, had in his bladder at the time of his death a stone which filled the whole cavity, and which was grooved from the ureters to the urethral opening, thus allowing the passage of urine.
Recent records of large calculi are offered: by Holmes, 25 ounces; Hunter, 25 ounces; Cayley, 29 ounces; Humphrys, 33 ounces; Eve, 44 ounces; and Janeway, 51 ounces.

Kirby has collected reports ol a number of large vesical calculi.
Barton speaks of stone in the bladder in very young children.

There is a record of a stone at one month, and another at three years.

Todd describes a stone in the bladder of a child of sixteen months.

May removed an enormous stone from a young girl, which had its nucleus in a brass penholder over three inches long.
Multiple Vesical Calculi .-- Usually the bladder contains a single calculus, but in a few instances a large number of stones have been found to coexist.