Fourth Volume - New Description of the Sun Dial - Chapters - Page 70 Fourth Volume - New Description of the Sun Dial - Chapters - Page 71
Fourth Volume - New Description of the Sun Dial - Chapters - Page 69



Fourth Volume - New Description of the Sun Dial - Chapters - Page 70 Fourth Volume - New Description of the Sun Dial - Chapters - Page 71 Fourth Volume - New Description of the Sun Dial - Chapters - Page 72