An Investigation into the Nature of Black Phthisis / or Ulceration Induced by Carbonaceous Accumulation in the / Lungs of Coal Miners

 An Investigation into the Nature of Black Phthisis / or Ulceration Induced by Carbonaceous Accumulation in the / Lungs of Coal Miners
Archibald Makellar

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  4. 📖An Investigation into the Nature of Black Phthisis / or Ulceration Induced by Carbonaceous Accumulation in the / Lungs of Coal Miners