R. T. Hill — The alleged Jttrassic of Texas. 469 



Finally, concerning his American geologic work, it can be 

 said now, as was truthfully said by Professor Dana many years 

 ago, that* "We cannot see, therefore, that Mr. Marcou's claims 

 as a discoverer are in any one case sustained, or that his merits 

 are in any respect enhanced by his American researches, and 

 we certainly should not go to him for an exposition of Ameri- 

 can geology."f ..." We cannot therefore think that his 

 former reviewers and opponents deserve, because they differ 

 from him, either to have their names expunged from American 

 geological history, or thrown into discredit ; nor do we believe 

 that their reputations will seriously suffer from our ambitious 

 Rocky Mountain explorer.^ . . . Whoever may identify true 

 Permian, true Triassic or true Jurassic strata will not have 

 borrowed from Mr. Marcou and can owe him no credit."§ 



*This Journal, Nov. 1858, aDd January 1859. flbid., January 1859, p. 139. 

 Jlbid., November 1858, p. 333. § Ibid., November 1858, p. 331. 



