OF PART THE SECOND. xxvii 
the generality of readers are little interested ; 
but an attention even to such minuteness is 
requisite in a writer who has ventured to ques- 
tion some of the deductions made by former 
authors. Indeed, few persons are aware, either 
of all the duties a writer of Travels must fulfil, 
or of half the difficulties he has to encounter. 
