|Contribution||Introduced use of unglazed clay cells, connected to air pump, for filtering out bacteria.|
|Notes||(Waterson, p. 10). The work was apparently done in 1870-71. Six years later, Pasteur used Plaster-of-Paris in the same way, and (with Joubert) moved into medical bacteriology. Waterson's [source?] is a 1962 paper by Roethlin (in German).|
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