John Bartram & Peter Kalm 
Observations on the Inhabitants, Climate, Soil, Rivers, Productions, Animals, and Other Matters Worthy of Notice, Made by Mr. John Bartram, in His Travels From Pensilvania to Onondago, Oswego and the Lake Ontario, in Canada [PDF ebook] 
To Which Is Annex’d, a Curious Account of the Cataracts at Niagara

Whilst the greatest effort has been made to ensure the quality of this text, due to the historical nature of this content, in some rare cases there may be minor issues with legibility. This journal was by feveral accidents prevent ed from arriving in England till june 1750, and is now made publick without the author’s know ledge, at the inftance of feveral gentlemen, who were more in number than could conveniently perufe the manufcript. Had he intended it for publication he would have made it probably more entertaining and perhaps have retrenched fome parts that made the leaft figure in it.