Change of air or the philosophy of travelling; being autumnal excursions through France, Switzerland, Italy, Germany, and Belgium; with observations and reflections on the moral, physical and medicinal influence of travelling-exercise, change of scene, foreign skies, and voluntary expatriation. To which is prefixed Wear and tear of modern Babylon / by James Johnson, M.D.

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Change of air or the philosophy of travelling; being autumnal excursions through France, Switzerland, Italy, Germany, and Belgium; with observations and reflections on the moral, physical and medicinal influence of travelling-exercise, change of scene, foreign skies, and voluntary expatriation. To which is prefixed Wear and tear of modern Babylon / by James Johnson, M.D. Public Domain Mark. Source: Wellcome Collection.