Fourth Volume - New Description of the Sun Dial - Chapters - Page 10 Fourth Volume - New Description of the Sun Dial - Chapters - Page 11
Fourth Volume - New Description of the Sun Dial - Chapters - Page 9



Fourth Volume - New Description of the Sun Dial - Chapters - Page 10 Fourth Volume - New Description of the Sun Dial - Chapters - Page 11 Fourth Volume - New Description of the Sun Dial - Chapters - Page 12