Scientific dialogues, intended for the instruction and entertainment of young people: in which the first principles of natural and experimental philosophy are fully explained. Of optics and magnetism, Volume 5J. Johnson, 1812 - 260 pages |
Scientific dialogues, intended for the instruction and entertainment of young people: in which the first principles of natural and experimental philosophy are fully explained. Of optics and magnetism, Volume 5J. Johnson, 1812 - 260 pages |