The investigation of mine air : an account by several authors of the nature, significance, and practical methods of measurement of the impurities met with in the air of collieries and metalliferous mines / edited by Sir Clement Le Neve Foster and J.S. Haldane.

Licence: Public Domain Mark

Credit: The investigation of mine air : an account by several authors of the nature, significance, and practical methods of measurement of the impurities met with in the air of collieries and metalliferous mines / edited by Sir Clement Le Neve Foster and J.S. Haldane. Source: Wellcome Collection.