[30] For an account of an improvement of the splint, represented
in this plate, projected by Dr. Physick, and now used in the
Pennsylvania hospital, see Article II. of the Appendix. TRANS.
This figure represents the apparatus for permanent extension,
employed by Desault in oblique fractures of the os femoris.
AA. The external splint, with a notch and a mortise in it at the
lower end to fix the inferior extending roller.
BB. A bandage passing round the body, intended to secure this splint
against the pelvis.