Has devised a respirator for firemen by moistening cotton wool with glycerine and adding charcoal. JT suggests the nose with its hairs and mucus is a respirator that would give protection against diseases caused by floating particles. The presence of hair and mucus is thus explained by CD’s theory.

Thinks JT’s discovery of a glycerine respirator is an interesting practical discovery. CD has been wondering about the hairs in our nostrils, but doubts that JT has explained their function, since there are hardly enough.

Will ask W. Ogle to observe hairs in nostrils of different races.