It was tenanted by De Quatrefages in his time, and is at present occupied by Professor G.T.

Hamy; Professor L.
Vaillant living in the first _etage_, or second story, and Dr.J.
Deniker, the _bibliothecaire_ and learned anthropologist, in the third.
The second _etage_ was, about fifty years ago (1840-50), renovated for the use of Fremy the chemist, so that the exact room occupied by Lamarck as a study cannot be identified.
This ancient house was originally called _La Croix de Fer_, and was built about two centuries before the foundation of the Jardin du Roi.

It appears from an inspection of the notes on the titles and copies of the original deeds, preserved in the Archives, and kindly shown me by Professor G.T.Hamy, the Archivist of the Museum, that this house was erected in 1468, the deed being dated _1xbre_, 1468.

The house is referred to as _maison ditte La Croix de Fer_ in deeds of 1684, 1755, and 1768.

It was sold by Charles Roger to M.le Compte de Buffon, March 23, 1771.