A study of  astronomical science through  five 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.

Richmond's "Religion of the Universe" has been appended. Swami Abhedananda's treatment of the subject matter is very scientific and rational.