TY - BOOK TI - The Philosophical magazine : comprehending the various branches of science, the liberal and fine arts, geology, agriculture, manufactures and commerce VL - v.33 (1809:Jan.-June) UR - https://www.biodiversitylibrary.org/item/15607 PB - Richard Taylor and Co CY - London PY - 1809 KW - Periodicals KW - Physics KW - Science ER -