A MONOGRAPH 



ON THE 



FOSSIL REPTILIA 



OP THE 



WEALDEN AND PURBECK FORMATIONS. 



SUPPLEMENTS Nos. 4—9. 



BY 



SIR RICHARD OWEN, K.C.B., D.G.L., F.R.S., 



FOREIGN ASSOCIATE OF THE INSTITUTE OF FRANCE, 

 ETC. ETC. 



LONDON: 

 PRINTED FOR THE P AL^ONTOGR APHIC A L SOCIETY. 



1872—1889. 



