Fourth Volume - New Description of the Sun Dial - Notes - Page 230 Fourth Volume - New Description of the Sun Dial - Notes - Page 231
Fourth Volume - New Description of the Sun Dial - Brief Compendium - Page 229



Fourth Volume - New Description of the Sun Dial - Notes - Page 230 Fourth Volume - New Description of the Sun Dial - Notes - Page 231 Fourth Volume - New Description of the Sun Dial - Notes - Page 232