ADVERTISEMENT. 



HE Treat] fe here offered to the Pablic, 

 was drawn up with a view of explain- 

 ing Dr Mutton's Theory of the Earth in a 

 manner more popular and perfpicuous than 

 is done in his own writings. The obfcu- 

 rity of thefe has been often complained of; 

 and thence, no doubt, it has arifen, that fo 

 little attention has been paid to the inge- 

 nious and original fpeculations which they 

 contain. 



The fimplefl way of accomplifhing the 

 objed propofed, feemed to be, to prefent a 

 General Outline of the Syflem, in one con- 

 tinued Difcourfe ; and to introduce after- 

 wards, in the form of Notes, what farther 

 Elucidation any particular fubjed was 

 thought to demand. Throuo-h the whole. 



ear ex 



I have aimed at little more than a c 



m 



pofition of fads, and a plain dedudion of 

 the conclufions grounded on them ; nor 

 fhall I claim any merit to myfelf, if in the 

 order which I have found it neceffary to 

 ^dopt, fome arguments may have taken a 



a 2 new 



I 



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