White has collected 37 cases of recent date; and Chipault reports two cases, and collected 33 cases.

Quite a tribute to the modern treatment by antisepsis is shown in the results of laminectomy.
Of his non-antiseptic cases Lloyd reports a mortality of 65 per cent; those surviving the operation are distributed as follows: Cured, one; partially cured, seven; unknown, two; no improvement, five.

Of those cases operated upon under modern antiseptic principles, the mortality was 50 per cent; those surviving were distributed as follows: Cured, four; partially cured, 15; no improvement, 11.

The mortality in White's cases, which were all done under antiseptic precautions, was 38 per cent.

Of those surviving, there were six complete recoveries, six with benefit, and 11 without marked benefit.