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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.
Ogle will keep JT’s suggestion in mind in observing less hairy races of man and the lower animals.
Asks JT whether he can help Ogle on a troublesome point on the colour of tissues with olfactory nerves, and the relation of colour to the absorption of odours. Does JT’s respirator deprive odorous substances of their smell?
Ogle is unacquainted with JT; would be proud and pleased to call on him. CD likes what little he has seen of him.
JT suggests that Ogle call upon him so that they can arrange experiments suitable for his purpose.
Ogle wants very much to meet JT.
Thanks JT for his kindness to Ogle.
Has seen Ogle. His subject [olfactory nerve tissue and absorption of odours] has often occupied JT’s attention.