A MONOGRAPH 
BRITISH 
FOSSIL SPONGES. 
BY 
GEORGE JENNINGS HINDE, Pu.D., F.GS. 
PART III. 
SPONGES OF JURASSIC STRATA. 
(Paces 189—254; Prarrs X—XIX.) 
Pr OFNED:OEN:: 
PRINTED FOR THE PALHONTOGRAPHICAL SOCIETY. 
1893. 
