112 Topographical Sketch of the State of NeuyYork. 



" Circulars were again addressed by the surveyor-general to 

 the several supervisors, enclosing maps of their respective towns, 

 and requesting them to point out the errors, if any, and also to 

 suggest such additions as might be necessary to render the work 

 more full and perfect. These circulars were in most instances 

 returned with much useful information, which enabled the sur- 

 veyor-general, with his previous knowledge, to correct such er- 

 rors as had escaped the observation of the author. This work, 

 therefore, comprises not alone the geographical knowledge of a 

 single individual, but that of many, and those the best informed 

 by their vocations of any in the state." 



