J. A. B.ABBAU. "Analogon of the configuration of Kummeiï in Sp 7 ." 



>}.3HS67Stl}'iS67gll3'iS676tl}<iS-67gf2.3',S6TSll3lSa7S>l3'>Sb7#>l3'tSb7i 



So m ■ "' •i-'TJ...: '. .[:--: l r iifitf 

 77X7'-**" | .••;•■: ' ~ " 7 ■ , j ~ ~ ■ \ , ;-~ 



CE- — . — L.il »»>-! "'» : i-.i,...'T i.i.^ i.j !j j "■ i , 1 — r_j ■ f 1.1.. i ;.... ; .j. ; . t r 



F G H 



Proceedings Royal Acad. Amsterdam. Vol. X. 



