The number and distribution of micro-organisms in the air of the Boston City Hospital : with some carbonic acid determinations / by Greenleaf R. Tucker.

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The number and distribution of micro-organisms in the air of the Boston City Hospital : with some carbonic acid determinations / by Greenleaf R. Tucker. Public Domain Mark. Source: Wellcome Collection.

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This material has been provided by the National Library of Medicine (U.S.), through the Medical Heritage Library. The original may be consulted at the National Library of Medicine (U.S.)