Fourth Volume - New Description of the Sun Dial - Chapters - Page 48 Fourth Volume - New Description of the Sun Dial - Chapters - Page 49
Fourth Volume - New Description of the Sun Dial - Chapters - Page 47



Fourth Volume - New Description of the Sun Dial - Chapters - Page 48 Fourth Volume - New Description of the Sun Dial - Chapters - Page 49 Fourth Volume - New Description of the Sun Dial - Chapters - Page 50