Fourth Volume - New Description of the Sun Dial - Problems - Page 194 Fourth Volume - New Description of the Sun Dial - Problems - Page 195
Fourth Volume - New Description of the Sun Dial - Problems - Page 193



Fourth Volume - New Description of the Sun Dial - Problems - Page 194 Fourth Volume - New Description of the Sun Dial - Problems - Page 195 Fourth Volume - New Description of the Sun Dial - Problems - Page 196