PROSERPINA. 



pands from to a J / and closes in the external line, and 

 for this reason. 



Considering every flower under the type of a cup, the 

 first part of the petal is that in which it expands from the 

 bottom to the rim ; the second part, that in which it ter- 

 minates itself on reaching the rim. Thus let the three 

 circles, ABC, Fig 6., represent the undivided cups of the 

 three great geometrical orders of flowers trefoil, quatre- 

 foil and cinquefoil. 



Draw in the first an equilateral triangle, in the second 

 a square, in the third a pentagon ; draw the dark lines 

 from centres to angles ; (D E F) : then (a) the third part 

 of D ; (&) the fourth part of E, (c) the fifth part of F, are 

 the normal outline forms of the petals of the three fami 



