Fourth Volume - New Description of the Sun Dial - Problems - Page 198 Fourth Volume - New Description of the Sun Dial - Problems - Page 199
Fourth Volume - New Description of the Sun Dial - Problems - Page 197



Fourth Volume - New Description of the Sun Dial - Problems - Page 198 Fourth Volume - New Description of the Sun Dial - Problems - Page 199 Fourth Volume - New Description of the Sun Dial - Problems - Page 200