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Carl F. Schmidt

Early collaborator of Richards; author of the 1971 National Academy of Sciences memoir of Richards

Dates: No dates given in the film's sources
Chapters: V. What the Water Knew

What the film says

The 'own colleague' who wrote that the result suggested, though it did not prove, filtration.

Watch 25:43 in the film V. What the Water Knew

On the timeline

1919-1920: Carl Schmidt, working with Richards, watches the circulation of the living frog kidney under a low-power microscope. timeline
1971: Carl F. Schmidt's National Academy of Sciences memoir of Richards records the origin of micropuncture and the 1921 objection. timeline

Sources

Sources

Schmidt 1971, NAS Biographical Memoir of Alfred Newton Richards Secondary