1893 Celestial Diagram Showing Solar System and Zodiac Constellations
By: Walter Levi Yaggy
Date: 1893 (published) Chicago, IL
Dimensions: 24 x 36 inches (61 x 91.5 cm)
This is a superb diagram with moving parts demonstrating the phases of the moon, positions of the twelve zodiac constellations, order of planets and their relative size, distance, and number of moons. The work was part of Levi Walter Yaggy's 1893 Geographical Portfolio, published as an educational tool for high schools and colleges. The entire portfolio consisted of nine illustrated charts, and maps as well as two movable diagrams of presenting celestial phenomena, all housed in a wooden cloth-wrapped case.
Yaggy's diagram is presented in a clear and logical manner, providing the varying distance of each planet from the sun across the top, and the relative size and number of known moons of along the bottom. Much of the diagram is used to demonstrate night and day with the sun position on the other side. This section also highlights the twelve zodiac constellations and when they can be seen at different times of the day and night. The chart features functional moving parts that demonstrate these changes when used, a most practical instrument for any teacher to utilize when instructing their class, especially during the late 19th century.
This diagram, like many from these portfolios came into us warped and in a non-functional condition. We have since flattened the piece so that all moving parts rotate with ease. It looks particularly brilliant when lit from behind and would make an amazing piece of historical wall art if displayed in a backlit frame.
Levi Walter Yaggy (1848 - 1912) Was born in Plainfield Illinois to Jacob and Elizabeth Yaggy. He attended Northwestern College in Naperville, Illinois before moving to Chicago where he would found the Great Western Publishing House in 1874. He business would enjoy great success, ultimately expanding to include seventeen branch offices throughout the United States and employing thousands. Yaggy primarily focused on creating maps and educational books and portfolios for high schools and colleges that included "Museum of Antiquity; A Description of Ancient Life...," "The Standard History of All Nations and Races…," and "Yaggy’s Anatomical Study; Presenting the Skeleton, Muscles, Arteries, Veins and Nerves...," among others.
Condition: This print is in A condition, flattened and entirely functional with no breaks around the border and minimal scuffing. Some signs of previous water damage are visible on the verso, but will no longer have a negative effect on the piece.
Inventory #12243
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