662 



KEI'OKT OF NATIONAL MUSEUM, L904.. 



deuce. The' greatest minds and the most acute of observers were 

 bound, by the then existing condition of knowledge, to make incom- 

 plete observations and faulty deductions. 



The original section, as noted, was some fifteen miles in length. 



The rocks were all pronounced as unfossiliferous and dipped through- 

 out to the eastward, their relative ages being judged wholly by super- 

 position, the Stock bridge limestone, where it rested immediately upon 

 the gneiss, being regarded as the oldest of the series. 



