1To Benjamin Franklin from Peter Kalm, 6 August 1749 (Franklin Papers)
MS not found; reprinted from extract in The Pennsylvania Gazette , October 12, 1749. I have found...
2To Benjamin Franklin from Peter Kalm, 2 September 1750 (Franklin Papers)
ALS : American Philosophical Society Peter Kalm visited Niagara Falls in the summer of 1750. He...