[Signed] Schmidt, Prof. Dr. C. "Essbare Erden" aus Lappland und Süd-Persien, 1871. In German.

[Autograph]
Schmidt, Prof. Dr. C.
„Essbare Erden" aus Lappland und Süd-Persien.
MÉLANGES PHYSIQUES ET CHIMIQUES DU BULLETIN DE L'ACADÉMIE IMPÉRIALE DES SCIENCES DE ST. PÉTERSBOURG. TOME VIII.
19-31 Januar 1871.
8 S.
23 x 15 cm.
***
[With author's autograph]
Schmidt, Prof. Dr. C.
"Edible Earths" from Lapland and South Persia ("Essbare Erden" aus Lappland und Süd-Persien).
MÉLANGES PHYSIQUES ET CHIMIQUES DU BULLETIN DE L'ACADÉMIE IMPÉRIALE DES SCIENCES DE ST. PÉTERSBOURG. VOLUME VIII.
January 19-31, 1871.
8 p.
23 x 15 cm.

This scientific offprint by Professor Dr. C. Schmidt presents a fascinating comparative study of geophagy—the practice of eating earth—in two culturally and geographically distinct regions of the Russian Empire: Lapland in the far north and South Persia. Published in the esteemed bulletins of the Imperial Academy of Sciences in St. Petersburg in 1871, this work sits at the intersection of mineralogy, ethnography, and early nutritional science. It reflects the 19th-century scholarly interest in classifying natural substances and documenting human interactions with the environment across the empire's vast territories. A copy bearing the author's autograph connects this specific research to the hands of the scholar who conducted it, making it a valuable artifact of imperial Russian scientific inquiry.