I posted in another forum (measurection) about a study done in the fifties on hair growth patterns on the penis. The article was by LR Setty and was called "Hair patterns of the external surface of the nose of American Negro and white males."
J Natl Med Assoc. 1973 May;65(3):214-5.

If I can figure out how to upload an image from my computer, I'll post the drawing of the four hair patterns he observed. Or, try this link to measurection http://www.measurection.com/fusionbb...st/160799/hl//