Volume 1

Petralogy. A treatise on rocks / By J. Pinkerton.

  • John Pinkerton
Date:
1811
Catalogue details

Licence: Public Domain Mark

Credit: Petralogy. A treatise on rocks / By J. Pinkerton. Source: Wellcome Collection.

    659/670 page 595
    feet, a ligaite was found much impregnated with pyrites, as are most others of the Aisne. In this bed of decomposed wood, which is about three feet six inches in thickness, are found pieces of fossile wood, partly carbonised; some bones of animals, seemingly of wild kine; amber in round or angular fragments, some quite transparent and sometimes imbedded in pyrites. Such vene¬ rable relics must not be confounded with peat, which commonly proceeds from the decompo¬ sition of graminous and other small vegetables, though trunks, hazel nuts, &c. be occasionally found. Faujas supposes with Patrin, that coal itself may often consist of wood brought by the sea, and deposited in recesses at considerable elevations, when the globe was studded with pri¬ meval islands. The numerous sea plants, mo- lusks, and oily carcases of so many fish that daily perish, also contribute, in his opinion, to this product; but this theory has many diffi¬ culties. Professor Hollman of Gottingen, published in 1784 an account, which had before appeared in the Philosophical Transactions, vol. 51, of some hills or mountains, as he calls them, near the city of Munden, and in that point of land which is washed at their junction by the rivers Werra and Fulda; one is about 1150 feet in height, S Q 2
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