Fourth Volume - New Description of the Sun Dial - Problems - Page 188 Fourth Volume - New Description of the Sun Dial - Problems - Page 189
Fourth Volume - New Description of the Sun Dial - Problems - Page 187



Fourth Volume - New Description of the Sun Dial - Problems - Page 188 Fourth Volume - New Description of the Sun Dial - Problems - Page 189 Fourth Volume - New Description of the Sun Dial - Problems - Page 190