The State of New York has long been famous as the centre from which radiated, out geological life and energy to the early explorers, whose followers are now to be found spread over the vast States of America. The names of Emmons, Silliman, Dana, and Hall, and a host of other great geologists, may be cited, whose records will never die, and whose work is now being carried on by their living representatives. Such a surviving successor of James Hall now worthily fills his chair at the Albany Museum.