Fourth Volume - New Description of the Sun Dial - Problems - Page 180 Fourth Volume - New Description of the Sun Dial - Problems - Page 181
Fourth Volume - New Description of the Sun Dial - Tables - Page 179



Fourth Volume - New Description of the Sun Dial - Problems - Page 180 Fourth Volume - New Description of the Sun Dial - Problems - Page 181 Fourth Volume - New Description of the Sun Dial - Problems - Page 182