Definitions from Smith's Illustrated Astronomy by Asa Smith - 1849/1850

The Seasons from Smith's Illustrated Astronomy by Asa Smith - 1850

Refraction, parallax, light, heat from Smith's Illustrated Astronomy by Asa Smith - 1850

Saturn from Smith's Illustrated Astronomy by Asa Smith - 1850

Opening Our Eyes from Smith's Illustrated Astronomy by Asa Smith - 1850

Centrifugal, Centripetal Force from Smith's Illustrated Astronomy by Asa Smith - 1850

Signs of the Zodiac from Smith's Illustrated Astronomy by Asa Smith - 1850

Eclipses from Smith's Illustrated Astronomy by Asa Smith - 1850

Greatest Number of Eclipses in one Year from Smith's Illustrated Astronomy by Asa Smith - 1850

Venus and Mars from Smith's Illustrated Astronomy by Asa Smith - 1850

La collection de cartes postales Eric Ravilous

Eclipses from Smith's Illustrated Astronomy by Asa Smith, 1849 - Postcard

Signs of the Zodiac from Smith's Illustrated Astronomy by Asa Smith, 1849 - Postcard

Smith's illustrated astronomy, designed for the use of the public or common schools in the United States. Illustrated with numerous original diagrams.' By Asa Smith, 1849 - Postcard

Definitions from Smith's Illustrated Astronomy by Asa Smith, 1849 - Postcard

Centrifugal, Centripetal Force from Smith's Illustrated Astronomy by Asa Smith, 1849 - Postcard

Sun, Spots on the Sun, Transits of Mercury & Venus from Smith's Illustrated Astronomy by Asa Smith, 1849 - Postcard

The Seasons from Smith's Illustrated Astronomy by Asa Smith, 1849 - Postcard

Refraction, parallax, light, heat from Smith's Illustrated Astronomy by Asa Smith, 1849 - Postcard

Greatest Number of Eclipses in one Year from Smith's Illustrated Astronomy by Asa Smith, 1849 - Postcard

Saturn from Smith's Illustrated Astronomy by Asa Smith,1849 - Postcard