While in Paris last summer, I saw an instrument made by Collin, which struck me at once as being an excellent substitute for the pressure forceps, where this is used to grasp and hold the margins of delicate tissues, as the peritoneum, the pleura, the incised walls of visceræ, the bladder, stomach, intestines, etc. The instrument was a delicately made straight tenaculum forceps, similar to the Croenlein forceps, with five interdigitating teeth; two on one jaw, three on the other, and provided with French lock and ratchet clasp.
I brought some of them home, but found on using that the teeth projected and scratched the tissues. This led me to modify the instrument by providing it with two diverging teeth, 1¾ mm. in length on the upper jaw, and with a flat ovoid platform with two perforations on the under jaw. I also gave the instrument a