This book deals with the study of astronomical science comprising five illuminating lectures : (1) The Constellations of the Zodiac, (2) The Sun and the Solar Forces, (3) The Planets and the Planetary Influence, (4) The Earth and its Relation to the Sun, (5) Heliocentric Science.
The book one must read to learn natural sciences is the book of nature. The book from which to learn religion is your own mind and heart.
-Swami Vivekananda