M 



l'i 



D 



K 



f^i 



■^' 



fJ^:* 







Fig. 12. The designer of the bell on the left intended the divers to stand on the 

 weight A, up to their waists in water, and thrust their heads into the inverted 

 wooden box, LR. The windows IH were fitted with panes of glass. The great tube- 

 like contrivance on the right was of iron-banded leather and was designed to supply 

 air to the goat-skin-clad diver at its base. Both of these machines were described by 

 Buonaiuto Lorini in his "Le Fortificationi" (1609), but there is no proof that either 

 was ever used. 



(Courtesy of the New York Public Library) 



