An account of the automaton, constructed by Orffyreus: in two letters; the one, from Professor 'sgravesande, to Sir Isaac Newton; the other from Baron Fischer, to Dr. Desaguliers. To which is annexed the testimonial of the Prince of Hesse Cassel, in favour of Orffyreus's Machine: likewise animadversions, by Professor Allaman of Leyden, on the neglect of that singular invention; with additional remarks on it's utility, reconstruction and improvement.
Kenrick, W. (William), 1725?-1779. | Date: printed in the year M.DCC.LXX. [1770]