Xo n/Acta Acad. C.L.C. &. Jaf. Cur. f U. XCIII. 



Tab.Vn. 



m 



eC- 



c.^v 



Fig.1. 



A.RoseRÜuil : Polyeder. Taf. /. 



lifli^nst. ScTöndler.Iepzig-, 



