File:Snow therapy.jpg

Summary
From the book "Universal Naturopathic Directory", published in 1918.

Photo caption: "Father Kneipp and the Archdukes Joseph and Francis Ferdinand of Austria walking barefoot in the new fallen snow, for hardening the constitution. The older Archduke was cured by Father Kneipp of Bright's disease in 1892, and presented in appreciation of his great Cure a Public Park for 150.000 florins to the town of Woerishofen. The younger Archduke was the heir to the crown, whose murder precipitated the World War in 1914."