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Category: Science and Technology

Handwritten copy (with deletions crossed out and additions added) of the first few sentence of Jefferson

The Artistry of Learning Math: The Ellerton-Clements Cyphering Book Collection

Posted by: Josh Levy

Before the modern textbook, Western school-age children learned mathematical concepts through what was called the "cyphering tradition" and created textbooks of their very own. The volumes in the recently processed Ellerton-Clements Cyphering Book Collection will certainly be of interest to those who study math and early modern education, but many also possess a unique kind of artistry.

Handwritten copy (with deletions crossed out and additions added) of the first few sentence of Jefferson

Finding Rats in the Barry Commoner Papers

Posted by: Josh Levy

In the late 1960s, Barry Commoner and the Center for the Biology of Natural Systems became involved in an ambitious, federally funded effort to understand the ecology of the sewer rat, and then kill it. That project’s failure at a moment of heightened political radicalism reveals how the rat-human relationship can highlight histories of economic injustice. With a major reprocessing of the Barry Commoner Papers now complete, those stories, and more, emerge with far greater clarity.