Since King described her efficient method of recording footprints,1 I have used it almost daily. It furnishes the pediatrician with an inexpensive method of footprinting, the records of which are readily filed for future comparison.
There is little doubt that weak feet in small children is a matter which has been neglected by those having the greatest opportunity to correct the condition.
From the use of King's device it was soon apparent that the footprints did not tell the whole story of weak feet. Many feet have a tendency to roll in at the ankle; this condition will be referred to subsequently as pronation. These feet frequently show good longitudinal arches in the footprint records, but if the weakness at the ankle is not corrected, it will probably cause trouble later. This weakness is not apparent unless there is some record of the position of the heel. Then there