I 



> . 



'^Oj 



5 f'V 



is 



of 



\ 





.r-^'i-fc 



• * '««)lid : 



6m 



*^4 ' 





It. 





« »11 the diffii 



***» 



'1 



lacli more; a:f 



I 



'4i 



•H 



..c iiOm 



of tie tk 



V\ 



to ODei 



f-p/^' 



" bean:" 



» 



utiiiDore 



I K 



V ftated te*^| 



-f 



fll£ 





tlf 



ill 



K»» 





X ' 





;r 



M .HI' 



I.J. 



jk'^ 





HUTTONIAN THEORY. 



^ 



425 



376. The inftance juft given may ferve as one of 

 niany, to (liew what confidence is to be placed 

 in that indigefled mafs of fads and quotations 

 which Mr Kirwan, without difcrimination, and 

 \vithout difcuffion, has brought together from 

 all quarters. He has no intention, 1 believe, to 

 deceive his readers; but we may judge, from 

 this fpecimen, of the precautions he has taken 

 againft bein<r .' . ceived himfelf. 



In fome refpecls, the refult of Frifi's invefti- 

 gation mud be confidered as imperfect:. If there 

 were no relative motion in the parts of our globe, 

 but that by which things; defcend from a high- 

 er to a lower level, a continual acceleration of 

 its rotation, though extremely flow, would take 

 place, as above computed. But as, in the in- 

 terior of the earth, there are undoubtedly mo- 

 tions of a tendency oppohte to thofe on the fur- 

 face, and direded from the centre towards the 



circumference. 



y 



certain appearances that have been obferved refpeding 

 the ancient level of the fea. Thele appearances will 

 be afterwards confidered : it is fufficient to remark here, 

 that though the fradion, expreffing the increment of the 



mufl 



the acceleration, it muil be too fm 



im 



menfe interval of time; and the compenfations which 



mu 



becoming fenfible 



