A MONOGRAPH 
OF THE 
Bhs 
FOSSIL SPONGES. 
BY 
GEORGE JENNINGS HINDE, Pu.D., F.G:S. 
PART III. 
SPONGES OF JURASSIC STRATA. 
(Paces 189—254; Piratrrs X—XIX.) 
LONDON: 
PRINTED FOR THE PALHONTOGRAPHICAL SOCIETY. 
1893. 
