Fourth Volume - Construction and Use of the Sun Dial - Contents - Page 24 Fourth Volume - Construction and Use of the Sun Dial - Contents - Page 25
Fourth Volume - Construction and Use of the Sun Dial - Contents - Page 23



Fourth Volume - Construction and Use of the Sun Dial - Contents - Page 24 Fourth Volume - Construction and Use of the Sun Dial - Contents - Page 25 Fourth Volume - Construction and Use of the Sun Dial - Contents - Page 26