enclosed are Several Specimens of this Country Productions as well natural as Accidental—the brick is found in a bank in the vicinity of this town, and only discovered within these few days by past. Dr. Baird, the bearer hereof, first discovered it and he and myself made a serious visit to it two days ago but had not Sufficient leasure to Search far into the bottom of the kiln, if such it is. No regular pieces of Moulded brick has yet been found, neither any vessel but still there can be no doubt but a intense fire alone could effect what has been discovered. The ground is no regular in its surface, like the points of other ridges; Neither does any traces of ? or ? ditch appear. A verry great lenth of time Must, from appearance, have elapsed since this kiln or furnace was on fire. It must have been done by the Antient inhabatants, or by the opporations of Nature. There is also a Specimen of a Slate enclosed Which has been burned by fire vast quantities of Which is now in the kiln or bank and I am persuaded that the Salate was used as fuel at the burning as large quantities of Slate are to be found in the Neibourhood of this bank. If any further discoveries Which may evidence anything Worthy the public attention I shall not Neglect it, and I am extremely happy in leting you know that the bearer Dr. Baird is equally solicitous with myself in makeing Useful discoveries and observations which may tend to the scrapeing from amongst dust, or by any other Means, any rational knowledge of this World as well as of affording Materials for a Natural history of it. The Doctor has Collected Many pieces of the vessels and other implements and by the Artists of American Antiquity enclosed are some fragments, Many curious ones are found here. If I remember Well I Mentioned to you When at Philadelphia that I had observed the prints of pieces of bark, of leaves, as well as real pieces of f[l]ints stones and pebble in the body of the free stone of this Country. I have enclosed a small piece with evident Marks of its having embraced bits of Wood and bark at its first formation. I also Mentioned to you I think my Idea of the production of Stone coal which contradicted the general received opinion. You desired one to send a Specimen. I have done so. I mentioned to you that I thought the coal was promoted in the following Methods that a clay as a Common basis with inflamable oil and with Argillecous[?] [Argilliferous] earth in a small quantities formed Coal and with a smaller quantity of the oil and a greater proportion of the last mentioned clay formed Slate and it was my opinion when I conversed with you last on the subject that a quantity of Calcarious [Calcareous] earth was esential to coal but I begin to give up that point or at least to doubt of it. I have agreeably to your desire sent a piece of the Coal (for I insist on its being Coal and it will burn in a common wood fire) I say I have sent a specimen of Coal which has a great proportion of Argillicious [Argilliferous] earth so great that it appears to be intire Slate. I now desist saying anything further lest I trouble you. I am Dr Sir with the Most profound respect your Most oblidged and verry humble Servant