Fourth Volume - New Description of the Sun Dial - Problems - Page 196 Fourth Volume - New Description of the Sun Dial - Problems - Page 197
Fourth Volume - New Description of the Sun Dial - Problems - Page 195



Fourth Volume - New Description of the Sun Dial - Problems - Page 196 Fourth Volume - New Description of the Sun Dial - Problems - Page 197 Fourth Volume - New Description of the Sun Dial - Problems - Page 198