In teaching cystoscopy in women the inability to hold steady the long mule cystoscope so that demonstrations could be given the students led to the use of shorter instruments. These had some objections, among which was the fact that they are made in few of the different types; so a holder that would allow free manipulation of the cystoscope and that could be fixed in any desired position was a welcome device. I feel that the instrument here presented, which embodies many improvements suggested by use, serves all the purposes for which a holder is desired.
A is a removable piece designed to lit a leg-holder of any size from 1/4 inch to 3/4 inch. On the projection is a short rod over which slips B, this allowing easy removal of the holder proper. B is so designed that it allows an up-and-down, a circular and a twisting motion of