426 APPENDIX ON DRAWING THE 



Fig. 384. 



We shall now proceed to delineate the secondary 

 form of a right rhombic prism, whose symbol would 

 be 



iGi M B E (Bi Hi B'2 : 62 Hi B'I) 

 h M e c bi 



(Bi H 3 B'2 : E2 H 3 B'I) P 



l)^ P 



Thig, although a more complicated figure than the 

 receding, may be produced with equal accuracy, by 



