Fourth Volume - New Description of the Sun Dial - Chapters - Page 88 Fourth Volume - New Description of the Sun Dial - Chapters - Page 89
Fourth Volume - New Description of the Sun Dial - Chapters - Page 87



Fourth Volume - New Description of the Sun Dial - Chapters - Page 88 Fourth Volume - New Description of the Sun Dial - Chapters - Page 89 Fourth Volume - New Description of the Sun Dial - Chapters - Page 90