TY - BOOK TI - Lectures on experimental philosophy, astronomy, and chemistry; intended chiefly for the use of students and young persons VL - 1 UR - https://www.biodiversitylibrary.org/item/57029 PB - printed for Longman CY - London PY - 1820 ET - 2d ed., corr. and improved. AU - Gregory, G. (George), KW - Science ER -