The geotropic orientation of young mice, on a plane at angles between 20° and 50° to the horizontal, obeys the equations previously found for young rats by Crozier and Pincus (1926–27). When the individuals tested in such experiments are not of the utmost uniformity, the variability of the measured orientations is increased.

This content is only available as a PDF.
You do not currently have access to this content.