cross sections of geological formations and views of the cosmos bring the world to life in 19th century educational charts /

In 1887 Levi Walter Yaggy published the Geographical Portfolio – Comprising Physical,Political, Geological, or Astronomical Geography with his publishing company,Western Publishing House of Chicago. The celebrated set of maps and charts (an expanded moment edition was released six years later) was intended for teachers to employ in classroom settings. The two by three-foot sheets used clever composite images to convey the range of topography and animals around the world, resulting in dense caves and steep mountain peaks that could be straight out of a fantasy novel. More

Source: thisiscolossal.com