Fourth Volume - Construction and Use of the Sun Dial - Contents - Page 34 Fourth Volume - Construction and Use of the Sun Dial - Contents - Page 35
Fourth Volume - Construction and Use of the Sun Dial - Contents - Page 33



Fourth Volume - Construction and Use of the Sun Dial - Contents - Page 34 Fourth Volume - Construction and Use of the Sun Dial - Contents - Page 35 Fourth Volume - Construction and Use of the Sun Dial - Contents - Page 36