C i;6 3 



it would render natural hiftoiy mucin more 

 pleafing, as well as greatly tend to it's progrefs, 

 were the limits of our knowledge therein pre- 

 cifely afcertained, that travellers and curious per- 

 fons, who have little leifure for reading, might 

 not only be informed of 'What is already discover- 

 ed, but alfo.of what is ftill doubted, or unknown 3 

 by which means their inquiries would be better 

 directed, and ffiort conducive to real information 

 and ufeful difcovery. 



SECT. 



