Fourth Volume - New Description of the Sun Dial - Chapters - Page 4 Fourth Volume - New Description of the Sun Dial - Chapters - Page 5
Fourth Volume - New Description of the Sun Dial - Prologue - Page 3



Fourth Volume - New Description of the Sun Dial - Chapters - Page 4 Fourth Volume - New Description of the Sun Dial - Chapters - Page 5 Fourth Volume - New Description of the Sun Dial - Chapters - Page 6