This rare book, in the French language, features observations on the current hygienic situation in Istanbul, and measures needed to prevent the spread of diseases such as cholera, which was then affecting France and Italy. It was written by a French engineer, Ch. Dalmas, of the French company Dalmas, who would later install the household supply points for water and printed in Istanbul.
This present example is signed by the author and dedicated to Leon Sellié, the director of Eaux de Constantinople (Constantinople Water Company), the most important utility in the Ottoman Empire.
We can trace only three institutional examples (Staatsbibliothek zu Berlin, Bibliothéque nationale de France and the Bibliothéque interuniversitaire de santé).
References: OCLC: 253263177.