Ten specimens of pharmacological substances associated with Pierre Joseph Pelletier (1788 - 1842), seven of which produced by Pelletier and Berthelot, and three of which from the Faculte de Pharmacie de Paris, Laboratorie de Chimie Organique, Paris, France, 1820-1900 Ten specimens of pharmacological substances associated with Pierre Joseph Pelletier (1788 - 1842) 1820-1900