Fourth Volume - Construction and Use of the Sun Dial - Contents - Page 26 Fourth Volume - Construction and Use of the Sun Dial - Contents - Page 27
Fourth Volume - Construction and Use of the Sun Dial - Contents - Page 25



Fourth Volume - Construction and Use of the Sun Dial - Contents - Page 26 Fourth Volume - Construction and Use of the Sun Dial - Contents - Page 27 Fourth Volume - Construction and Use of the Sun Dial - Contents - Page 28