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or raany of the creatures whicli livecl, or have lived in those 

 depths, and collected that earth in their shells, spines &c and 

 these foundations have been and are, by the gradual ascen- 

 sion of these remains, accumulated upon, until high enough 

 even for enabling Mr. Darwin's only efficiënt reefbuilders to 

 commence work and carrj it on to completion, i. e. to //the 

 level of lowest water spring tides" , his conclusion on this branch 

 of his theory, is therefore inadmissible. No evidence, worlhy 

 of recognition , has been adduced by him , at all capable of sup- 

 porting his assumption, that a series of small subsidences has 

 ever, any where, taken place, but even if that were taken for 

 granted, the production of lagoon islands, by taking as Mr. 

 Darwin has done, the Cocos for a specimen, cannot be, nor 

 has been a result of such, or any other sort of subsidences, 

 and we here defy him, to find a geologist, who having his 

 mind unbewitched (in favour of a theory of his own invention), 

 and keeping his eyes open, whilst investigating the formation 

 of the Cocos, shall, after doing so affirm, that he agrees with 

 Mr. Darwin''s conclusions, and can corroborate his assertions, 

 respecting them. Secondly, we have given some, and could 

 liave given more instances, of upheavals, alias propulsions from 

 below, (daring Mr. Darwin's recent period) wit/dn the great 

 area which he adduces as the most certain one of subsidence, 

 and as being the main foundation of his theory. Thirdly, we 

 have shewn, that lagoon reefs are standing on his principal area 

 of elevation. Vide the Brill in the eastern part of the Java 

 Sea, Rat island and reef off Bencoolen and Trieste reef and 

 islet on the S. W. Sumatran coast submarine extension; also 

 in Iiis elevation of the Eed Sea, extensive barrier reefs and at 

 least, one well defhied lagoon reef; and however bravely, on 

 false views , // ft may be shewn , that the intertropical oceans 

 may be divided &c", it cannot be even surmised, on any 

 truthful data. Pourthly, we have to remark, that if the 

 geologist has Information worthy of his profession, he needs 

 no theory, much Icss one, so wild, as worthless as this of 

 Mr. Darwin's conception, to be deeply impressed with the 



