XVII. 
a Octaedron Abscisum Solidum 
5 Viginti. sexbasium . planus . | solidas .[XXXV|. 
e Octocedron planus | vacuus [XVI]. 
XVIII. 
a Octaedron Abscisum Vacuum 
b Vigintisexbasium . pla | nus . vacuus [XXXVI]. 
c Octocedron abscisus | solidus [X.Vii]. 
NTX: 
a Octaedron Elevatum Solidum 
Yceocedron. planus. | solidus [XXI]. 
Octocedron abscisus | vacuus [XVIII]. 
f_S 
XX. 
«a Octaedron Elevatum Vacuum. 
5 Yeocedron. planus. | vacuus. [XXII]. 
c Octocedron elevatus | solidus | XVIIII|. 
XXI. 
Icosaedrton Planum Solidum . 
Exacedron . eleva | tus . solidus . [XI] 
Octocedron eleva | tus vacuus [XX]. 
Sf SEN 
XE 
a Icosaedron Planum Vacuum 
b Exacedron . eleva | tus . vacuus. | XII]. 
e Yeocedron planus | solidus | XXI]. 
XXIII. 
a Tceosaedron abscisum Solidum 
5 Dvodecedron . eleva | tus . solidus . [XXXI]. 
e Yeocedron planus | vacuus [XXII]. 
