Note on the stereophotochromoscope : a new optical instrument / by David Fraser Harris.

  • Fraser-Harris, David Fraser, 1867-1937.
Date:
[1895]
Catalogue details

Licence: Public Domain Mark

Credit: Note on the stereophotochromoscope : a new optical instrument / by David Fraser Harris. Source: Wellcome Collection.

Provider: This material has been provided by The University of Glasgow Library. The original may be consulted at The University of Glasgow Library.

    10/10 (page 382)
    382 On oxidation by exposure to air a comparatively slow recovery of colour ensued. In these results there is nothing new,—they are only an unlooked-for variation of Ehrlich's experiments with methylene- blue, which also is bleached by de-oxidation. In the lungs no de-oxidation occurred, because whatever small amount of oxygen the pulmonary tissue needed could be got from the air in the air-vesicles more readily than from its chemical combination in a salt of iron.