THEORY OF THE EARTH. 129 



unknown. Were some future naturalist, after be- 

 coming well acquainted with the living animals 

 of that country in this supposed new condition, 

 to search below the surface on which these ani- 

 mals were nourished, he would then discover the 

 remains of quite different races. 



What New Holland would then be, under 

 these hypothetical circumstances, Europe, Sibe- 

 ria, and a large portion of America, actually now 

 are. Perhaps hereafter, when other countries 

 shall be investigated, and New Holland among the 

 rest, they also may be found to have all under- 

 gone similar revolutions, and perhaps may have 

 made reciprocal changes of animal productions. 

 If we push the former supposition somewhat far- 

 ther, and, after the supply of Asiatic animals to 

 New Holland, admit that a subsequent catastro- 

 phe might overwhelm Asia, the primitive country 

 of the migrated animals, future geologist^y^nd na- 

 turalists would perhaps be equally at a loss to dis- 

 cover whence the then living animals of New Hol- 

 land had come, as we now are to find out the ori- 

 ginal habitations of our present fossil animals. 



32. Proofs that there are no Human Bones in a Fos- 

 sil State. 



I now proceed to apply the previous reasonings 

 to the human race. It is quite undeniable that 

 no human remains have been hitherto discovered 



17 



