Fourth Volume - New Description of the Sun Dial - Chapters - Page 68 Fourth Volume - New Description of the Sun Dial - Chapters - Page 69
Fourth Volume - New Description of the Sun Dial - Chapters - Page 67



Fourth Volume - New Description of the Sun Dial - Chapters - Page 68 Fourth Volume - New Description of the Sun Dial - Chapters - Page 69 Fourth Volume - New Description of the Sun Dial - Chapters - Page 70