[posted] Posted (#36936, Leeds) !

[David Widger]

Lectures on Ventilation, by Lewis W. Leeds                               36936
  [Subtitle: Being a Course Delivered in the Franklin
             Institute of Philadelphia]
  [Link: http://www.gutenberg.org/3/6/9/3/36936 ]
  [Files: 36936.txt; 36936-8.txt; 36936-h.htm]

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David