EARLY CETACEOUS FOSSILS. 87 



stop.^^* What now gives force to this observation is, 

 the recent discovery of a new set of bud foot-prints 

 — said to be of waders only — in the carboniferous 

 formation of Pensylvania. The emergence of 

 such a fact in the midst of the reviewer's specu- 

 lations on the foot-prints of the New Red Sand- 

 stone, forms a most emphatic commentary on all 

 decisive inferences where the facts are obviously 

 casual and isolated. 



Of a somewhat different character are the re- 

 viewer's remarks on the first relics of mammalia 

 — the few bones of cetacea from the Lower Oolite 

 and of marsupials from the Stonesfield Slate. 

 Here the very first mammal family is undoubtedly 

 marine ; and, if it were to receive equal consi- 

 deration with the grallatorial foot-prints, he ought 

 certainly to admit that it favours the development 

 theory. But he escapes from this claim by a 

 mode of his own. He has not seen these relics ! 

 The American foot-prints were good evidence, 

 without being seen ; but a fact which makes 

 against his theory requires personal inspection, 

 even though it may come forward with the autho- 

 rity of Baron Cuvier.f He is more at ease with 



* Travels in North America, I. 255. 



t " There is ia the Oxford Museum an uhia from the Great 



