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The manuscript lost Hassenfratz (1755-1827)

The SABIX acquired in February 2012 for the Library, a manuscript lost Hassenfratz first physics professor (1798-1814) of the Ecole Polytechnique.

The SABIX filed in the archives of the Library an unpublished manuscript and considered lost by Jean-Henri Hassenfratz (1755-1827), rediscovered during the sale held at Drouot Friday, February 10, 2012.

First Professor of Physics of the Polytechnic School, Hassenfratz was the subject of a biography written by Emmanuel Grison, published by the Presses de l'Ecole des Mines de Paris in 1996: The amazing journey of the Republican JH Hassenfratz, available at this address.


The manuscript consists of illustrated travel notes and handwritten copies of letters sent qu'Hassenfratz its correspondents. It covers the years 1783-1784 and allow us to follow the study tour conducted by Hassenfratz in Germany and Central Europe on the theme of technological advances in terms of mining and metallurgy.


The corresponding du'Hassenfratz during his journey are the scholars Gaspard Monge (qu'Hassenfratz called "Dear Dad"), Lavoisier, Jean de Champigny and Balthazar Georges Sage School of Mines, the Boullaye Douet, Quartermaster General of Mines, Vicq d'Azyr, physician and anatomist, and finally Vandermonde, mathematician.