VII] 



The ' Ortus Sanitatis ' 



167 



and leaves form a contrast in white, which we noticed in 

 the ' Book of Nature/ is carried further in the ' Ortus 

 Sanitatis.' This is shown particularly well in the Tree of 

 Paradise (Text-fig. 12) and also in Text-figs. 10 and 81. 

 No consistent method is followed in the coarse shading 

 which is employed. In some cases there seems to have 

 been an attempt at the convention, used so successfully 



Text-fig. 81. "Botris" [Ortus Sanitatis, 

 Mainz, 1491]. 



by the Japanese, of darkening the underside of the leaf, but, 

 sometimes, in the same figure, certain leaves are treated in 

 this way, and others not. In some of the genre pictures, 

 Noah's Ark trees are introduced, with crowns consisting 

 entirely of parallel horizontal lines, decreasing in length 

 from below upwards, so as to give a triangular form. 

 An edition of the 'Ortus Sanitatis,' which was published 



