INTRODUCTION. 



which, while it required a minute attention to the congruity 

 of the parts, must also, like a new road, lead to mistakes 

 and deviations, perhaps more numerous than the author can 

 conceive ; and which, if pointed out with benevolence, he 

 will be ever ready to correct with gratitude. " Those who 

 have gone before us," says an ancient classic, " have done 

 much, but they have not finished j much labour still remains, 

 and much will remain ; nor will an occasion be wanting of 

 adding somewhat even to authors who shall be born after a 

 thousand ages."* 



* Sane multum i!li egerunt, qui ante nos fuerunt, sed non peregerunt; 

 multum adhuc restat eperis, multumque restabit, nee ulli nato post mille 

 secula praccludetur occasio aliquid adjiciendi, SENECA. 



xlvii 



