xiv AUTHOR'S PREFACE 



To the Palaeontographical Society of Great Britain for permission 

 to reproduce three of the illustrations in Sir Bichard Owen's great 

 work, British Fossil Eeptiles, published in their yearly volumes, 

 viz. Figs. 8, 9, 14. 



To Messrs. Bell and Co. for the following cuts from the late 

 Dr. Gideon A. Mantell's works: viz. Figs. 3, 35, 36, 42, 53, 

 67, 68, 73. 



To Messrs. A. and C. Black for the following cuts from 

 Owen's Palaeontology : viz. Figs. 85, 99, 104. 



Appendix III. contains a list of some of the works of which 

 the writer has made use; but it would be impossible within 

 reasonable limits to enumerate all the separate papers which have 

 necessarily been consulted. 



Models in papier mache, about 12 to 20 inches in length, of 

 the following have been made under the supervision of the author, 

 and may be obtained from Messrs. Newman (of Newman Street, 

 Oxford Street, W.), viz. Tinoceras, Plesiosaurus, and Megatherium. 



The numbers of the Figs, given are those in the present Edition (1910). 



