Marechal de Rougeres, Voigtel, and Ormancey have related instances of similar growths on the 2d phalanx after the loss of the 1st.

For several months a woman had suffered from an ulcer of the middle finger of the right hand, in consequence of a whitlow; there was loss of the 3d phalanx, and the whole of the articular surface and part of the compact bony structure of the 2d.

On examining the sore, Ormangey saw a bony sequestrum which appeared to keep it open.

He extracted this, and, until cicatrization was complete, he dressed the stump with saturnine cerate.

Some months afterward Ormangey saw with astonishment that the nail had been reproduced; instead of following the ordinary direction, however, it lay directly over the face of the stump, growing from the back toward the palmer aspect of the stump digit, as if to cover and protect the stump.