Fourth Volume - New Description of the Sun Dial - Chapters - Page 80 Fourth Volume - New Description of the Sun Dial - Chapters - Page 81
Fourth Volume - New Description of the Sun Dial - Chapters - Page 79



Fourth Volume - New Description of the Sun Dial - Chapters - Page 80 Fourth Volume - New Description of the Sun Dial - Chapters - Page 81 Fourth Volume - New Description of the Sun Dial - Chapters - Page 82