The pubic hair of women is usually shorter than that of men, but thick, and the individual hairs stronger and larger in diameter than those of men, as Pfaff first showed; dark hair is usually stronger than light. In both length and size the individual variations are considerable. The usual length is about 2 inches, or 3-5 centimeters, occasionally reaching about 4 inches, or 9-10 centimeters, in the larger curls. In a series of 100 women attended during confinement in London and the north of England I have only once (in a rather blonde Lancashire woman) found the hair on labia reaching a conspicuous length of several inches and forming an obstruction to the manipulations involved in delivery. But Jahn delivered a woman whose pubic hair was longer than that of her head, reaching below her knee; Paulini also knew a woman whose pubic hair nearly reached her knees and was sold to make wigs; Bartholin mentions a soldier's wife who plaited her pubic hair behind her back; while Brantôme has several references to abnormally long hair in ladies of the French court during the sixteenth century. In 8 cases out of 2200 Bergh found the pubic hair forming a large curly wig extending to the iliac spines. The individual hairs have occasionally been found so stiff and brush-like as to render coitus difficult. In color the pubic hair, while generally approximating to that of the head, is sometimes (according to Rothe, in Germany, in one-third cases) lighter, and sometimes somewhat darker, as is found to be the case by Coe, especially in brunettes, and also by Bergh, in Denmark. Bergh remarks that it is generally intermediate in color between the eyebrows and the axillary hair, the latter being more or less decolorized by sweat, and that, owing to the influence of the urine and vaginal discharges, the labial hair is paler than that on the mons; blondes with dark eyebrows usually have dark hair on the mons. The hair on this spot, as Aristotle observed, is usually the last to turn gray.