Fourth Volume - New Description of the Sun Dial - Chapters - Page 52 Fourth Volume - New Description of the Sun Dial - Chapters - Page 53
Fourth Volume - New Description of the Sun Dial - Chapters - Page 51



Fourth Volume - New Description of the Sun Dial - Chapters - Page 52 Fourth Volume - New Description of the Sun Dial - Chapters - Page 53 Fourth Volume - New Description of the Sun Dial - Chapters - Page 54