PERCY SLADI 
Arthur Dendy, del 

EN TRUST | 
(DENDY) 




EXP] 

EDITION 













CALCAREOUS SPONGI 

= 
ES 
ERSE 
Trans. Linn. Soc. Si 



ER.2.Z00L.VOL.XVI Ph. 4. 











University Press, Cambridge. 
