... pi'mweatW #fifurr & gtC)Ztiou. I A VENTILATING BOOT. A hose cavity is made in thet heel, which is supplied with r ocotinlcos tu I p y of frtsb air by tubes let iathe top of the beel. Then, again, the air is conducted to the fore or front part of the boot by means of spiral springs which are embed. ded in perforated cork, between the sole and the insole; the corl' and the insole being ...