Smithsonian Report, 1%0 Raspet 



Plate 1 



Artist's conception of Leonardo da \ inci's tl_\ int' machine in riiirlit. Nuie tliat da Vinci, 

 knowint.' human anatomy as he did, at least tried to harness the pi^iwerful tlii.eh muscles, 

 whereas maii_\' other experimenters used onh' the arm muscles. (From a painting by 

 Robert Rit:gs, courtes)' of International Business Machines Corp.) 



