• Recipient

    • Franklin, Benjamin
  • Date

    • 1770-03-12


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Documents filtered by: Recipient="Franklin, Benjamin" AND Date="1770-03-12"
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ALS : American Philosophical Society When I imagin myself possess’d of any new Thought I think it, in the first place, due to your Inspection and accordingly have inclos’d my Conjectures on the Caudae Cometive; to gether with the small Tract on Epidemic Colds. I confess there is something unnatural in phylosophic Speculations at a Time when the Nation is involv’d in such Disorder and...
ALS : American Philosophical Society Just as I was about inclosing my papers it came in my head to mention to you a notion I have sometimes had that Pit-Coal is a vegitable production as of Grass or other Herbage of which the rich and fat Soil of our fresh Marshes is form’d. We know that these are constantly filling up by the Annual Supplys of this kind so that perhaps many places that were...