Fourth Volume - New Description of the Sun Dial - Problems - Page 186 Fourth Volume - New Description of the Sun Dial - Problems - Page 187
Fourth Volume - New Description of the Sun Dial - Problems - Page 185



Fourth Volume - New Description of the Sun Dial - Problems - Page 186 Fourth Volume - New Description of the Sun Dial - Problems - Page 187 Fourth Volume - New Description of the Sun Dial - Problems - Page 188