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responsible for the large number of so-called anterior transpositions obtained by attempted reduction.It is difficult to give any limit beyond which oste¬ otomy for the correction of anteversion is justifiable, as that will depend largely on the condition of the femoral head and acetabulum and whether or not we are content to consider anterior transposition a satisfactory result. Since only a very small propor¬ tion (1 per cent.) of normal cases show anteversion beyond 30 degrees, it seems fair to consider any amount in excess of 30 degrees a potent obstacle in the way of maintaining reduction.When this condition is found to an abnormal degree in cases with deficiency of the acetabular brim, asso¬ ciated with a short femoral neck, even though the femoral head be fairly well formed, osteotomy for its correction would seem to be a justifiable procedure, if it has been impossible to maintain reduction after a fair trial.50 Central Park West.