Vital economy, or, how to conserve your strength / by John H. Clarke.
- Clarke, John Henry, 1852-1931.
- Date:
- 1909
Licence: In copyright
Credit: Vital economy, or, how to conserve your strength / by John H. Clarke. Source: Wellcome Collection.
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Licence: In copyright
Credit: Vital economy, or, how to conserve your strength / by John H. Clarke. Source: Wellcome Collection.
