






This is an image of the Lena River Delta in Russia.

Covering eight linear feet of shelf space, this collection details the inner workings of a single, notorious committee. This House Committee had numerous names over the years. The most famous was the Committee on Un-American Activities, and it held hearings that lasted almost 20 years. Its main purpose was to investigate private citizens, public employees, movie stars, educators, and numerous types of organizations for disloyalty to the U.S. and suspected ties to Communism.

This volume shows some of the testimony of Abe Gelbart, a former professor of Mathematics at MIT and, during this time, at Syracuse University, who was called to testify before the committee in 1953.

US Geological Survey topographic map sheets from the 19th century were printed using copper plate engraving. This is an example of one of the three plates (each weighing about 17 lbs.) used to print the Rochester, New York 1:62,500 scale topographic maps, printed from 1895-1945. There are three plates, one for each printed color: brown designated contour lines or levels of elevation of the landscape; blue portrayed the water features found on the map, like creeks, rivers, ponds, lakes, reservoirs, or other water related features like swamps and marshes; and black (displayed here) was used to designate man-made features, like roads, buildings and other objects. On average, it took about four years of hand engraving to create these printing plates. The amazing thing to realize about this process is that the engravers had to engrave all the features backwards on the plates so that when the map was printed all the text and features would be read correctly by the user.
