The density found was in accord with that given by Berthelot, namely, 1264.
Cooley's Cyclopdia of Practical Receipts and Collateral Information in the Arts, Manufactures, Professions, and Trades..., Sixth Edition, Volume I|Arnold Cooley
Evidently, what Werner, Siemens and Berthelot held out, is approaching reality.
Woman under socialism|August Bebel
The evidence collected by Berthelot has an important bearing on the history of chemistry.