255 



On the Fossil remains of Turtles, discovered in the Chalk Forma- 

 tion of the South-east of England. Read May 20, 1841. 



On the Fossil remains of the soft parts of Foraminifera, discovered 

 in the Chalk and Flint of the South-east of England. Read June 

 18, 1846. 



Observations on some Belemnites and other Fossil remains of Ce- 

 phalopoda, discovered by Mr. R. N. Mantell, C.E., in the Oxford 

 Clay near Trowbridge in Wiltshire. Read Marcb 23, 1848. 



On the Structure of the Jaws and Teeth of the Iguanodon. Read 

 May 25, 1848. 



Additional Observations on the Osteology of the Iguanodon and 

 Hylseosaurus. Read March 8, 1849. 



On a Dorsal dermal Spine of the Hylseosaurus, recently discovered 

 in the Strata of Tilgate Forest. Read June 13, 1850. 



Supplementary Observations on the Structure of the Belemnite 

 and Belemnoteuthis. Read Feb. 14, 1850. 



On the Pelorosaurus ; an undescribed gigantic terrestrial reptile 

 whose remains are associated with those of the Iguanodon and other 

 Saurians in the Strata of Tilgate Forest. Read Feb. 14, 1850. 



All these papers are printed in the Transactions. For those on 

 the Iguanodon he received a Royal Medal in 1849. 



The Bibliographia Zoologiee et Geologise of the Ray Society 

 contains the titles of sixty-seven books and essays from the pen of 

 Dr. Mantell. 



Among the more important of his works on Geology are the fol- 

 lowing : — 



The Wonders of Geology, fxrst pubHshed in 1838. It has passed 

 through six editions, and has been translated into German. 



The Geology of the South-east of England. 1838. 



The Medals of Creation, 2 vols. 8vo, 1844. A recent edition of 

 this instructive work has been published. 



Thoughts on a Pebble. Seven Editions. 



A Geological Excursion round the Isle of Wight, and along the 

 adjacent Coast of Dorsetshire. 



Petrifications and their Teaching. This was one of the last of the 

 author's works, and was intended as an introduction to the organic 

 remains in the British Museum. 



As a lecturer as well as author, Dr. Mantell was eminently suc- 

 cessful. His style was fluent, and he possessed the art of attracting 

 his audience by an exhaustless catalogue of wonders. 



No one who has enjoyed the advantage of hearing him can forget 

 the singular ability, the felicitous illustrations, and the energetic 

 eloquence that characterized all his discourses. 



It is unhappily not the fate generally of the ardent pursuer of 

 science, who is at the same time obliged to follow a laborious pro- 

 fession, to enjoy the mens sana in corpoi^e sano. Dr. Mantell's life 

 formed no exception to this rule, for his vigorous intellect was ac- 

 companied by an amount of bodily suiFering which darkened many 

 years of his life, and was eventually the indirect cause of his death. 



This sulFering proceeded from a spinal afi^ection caused by an ac- 



