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thefe told me with what I have heard feveral others 

 fay, I have good reafon to think, that there are in 

 this continent either Spanifli or fome other Euro- 

 pean colonies much more to the north, than what 

 we know of New-Mexico and of California, and that 

 after failing up the MifTouri as far as it is navi- 

 gable, you come to a great river which runs weft- 

 ward, and difcharges itfelf into the South-Sea. And 

 even independent of this difcovery, which I believe 

 eafier this way than towards the north, I cannot 

 doubt on account of the proofs which I have re- 

 ceived from feveral hands, and which fuffici- 

 ently well agree, that by endeavouring to pe- 

 netrate to the fource of the MhTauri, we fhould 

 find fufficient to indemnify us for the expence 

 and fatigue which fuch an enterprize muft re- 

 quire. 



1 am, &C 



LETTER 



