Blindfolded persons walk, run, swim, row, and drive automobiles in clock-spring spiral paths of greater and lesser regularity when attempting a straightaway. The spiral turns either right or left in one and the same individual, and may do so even in one experiment. But either right or left turns predominate in the great majority of individuals, often to a high degree. The paths show marked individuality, and there is some ground for thinking there exists a correlation between temperamental differences and general character of path.