1867.] 



DAWKINS LOWER BBICK- EARTHS. 



101 



(having abounded at the bottom of the ancient lake which is now 

 the fertile vale of Cashmere), as well as throughout the great plain of 

 China, drained by the Hoangho and Yangtse Keang rivers *. Sir 

 Charles Lyell states in ' The Antiquity of Man' (p. 225), that Hy- 

 drohia marginata is also extinct in Britain. 



The range of the species through the different sections proves that 

 the strata they represent were deposited under precisely the same 

 conditions, and therefore probably at the same time. 



6. Mammalia, a. List of Species. We have already seen that the 

 identity of physical conditions and the distribution of the Testacea 

 prove that the strata which form the subject of this paper are of the 

 same geological date. The following Table of the mammalia found 



Fossil Mammalia of the Lower Brick-earths of the Thames Valley. 



1. Felis spelsea, Crold. 



2. F. catus, Linn 



3. Hyaena spelsea, Gold 



4. Ursus spelseus, Gold. 



6. IT. arctos, Linn 



6. Canis lupus, Linn 



7. C. vulpes, imw 



8. Lutra vulgaris, Erxl 



9. Bos primigenius. Boj. 



10. Bison priscus, Ow 



11. Megaceros Hibernicus, Ow. 



12. Cervus elaphus, Linn 



13. C. capreolus, Linn 



14. Elephas antiquus, Falc 



15. E. primigenius, Blum 



16. E. priscus, Gold 



17. Equus fossilis, Ow 



18. Rhinoceros tichorhinus, Guv. 



19. B. leptorhinus, Ow 



20. R. megarhinus, Christ 



21. Sus scrofa, Xmi>z 



22. Hippopotamus major, Besm. 



23. Castor fiber, Linn 



24. Arvicola amphibia, Besm. ... 



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in each locality adds cumulative proof. None of the species have 

 been accepted on hearsay, but are the result of the study of the col- 

 lections in the possession of Drs. Cotton and Spurrell, Messrs. Gran- 

 tham, Brady, and Wickham Mower (to whom I take this opportu- 

 nity of returning my best thanks), and of those in the College of 

 Surgeons and British Museums, and in the Museum of Practical 

 Geology. The list of animals given under the heading of Erith was 



* On the authority of Dr. Lamprey, Journ. of North China branch of the 

 Royal Asiatic Society, No. 2, 1866. 



