Fourth Volume - Construction and Use of the Sun Dial - Contents - Page 6 Fourth Volume - Construction and Use of the Sun Dial - Contents - Page 7
Fourth Volume - Construction and Use of the Sun Dial - Contents - Page 5



Fourth Volume - Construction and Use of the Sun Dial - Contents - Page 6 Fourth Volume - Construction and Use of the Sun Dial - Contents - Page 7 Fourth Volume - Construction and Use of the Sun Dial - Contents - Page 8