Fourth Volume - New Description of the Sun Dial - Chapters - Page 14 Fourth Volume - New Description of the Sun Dial - Chapters - Page 15
Fourth Volume - New Description of the Sun Dial - Chapters - Page 13



Fourth Volume - New Description of the Sun Dial - Chapters - Page 14 Fourth Volume - New Description of the Sun Dial - Chapters - Page 15 Fourth Volume - New Description of the Sun Dial - Chapters - Page 16