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HUTTONIAN THEORY. 



4^S 



ted th 

 tion, a; 

 ven to 



very contrary of M 



K 



poll 



d h 



IS proved, that the difturbance gi- 

 the diurnal motion by the caufes here 

 referred to may be real, but cannot be percepti- 

 ble. Having inveftigated a formula expreffing 

 the law which all fuch difturbances muft ne- 

 celTarily obferve, 



he 



nclud 



H 



autem 



formula manifeftum fiet, ex 



omnibus 



onibus quae in terrellri fuperficie obfervari fo 



;nt, montium et collium abralione, dilapfu cor 



'• "^^"^ wliic\jj^.| porura ponderoiiorum in inferiores telluris fmus 



oriri poffe Y3,Yhtionem fenjibikm diurn 



nullam oriri 

 motus. Nam ii (latuamus data aliqua 



nem ad du 



period 



Ilrem fuperfi 



ufq 



pedes abradi undique, eam vero materias quan 

 titatem ad profunditatem pedum loco dilabi 



quod inde orietur incrementum 



citatis diurni motus 



30000 



I 



* »» 



(19638051)* — 12855068184 



Here, it is evident, that Friii admits thofe 

 very changes on the furface which we are con- 

 tending for, and fliews, that their tendency is to 

 accelerate the earth's diurnal motion, but, by a 

 quantity fo fmall, that, in a fpace of time amount- 

 ing at lead to 200 years, the increafe of the diur- 

 nal motion would only be fuch a part of the 



D d 4 whole 



N 



* Frilli Opera, tom. iii. p. cjSp, 



