TY - BOOK TI - Principles of geology VL - v.4 UR - https://www.biodiversitylibrary.org/item/105905 PB - John Murray CY - London PY - 1837 ET - 5th ed. N1 - Location: Cambridge. --- Identifier: Lyell1837jf09J. --- Public number: 0843. AU - Lyell, Charles, Sir, ER -