Dave Beisecker (Philosophy) and co-author Amirouche Moktefi (University of Talinn, Estonia) had their paper, "John Cook Wilson's 'Hanging Plants': A Contribution to the History of Early Logic Trees," published in Diagrammatic Representation and Inference, a volume in the Springer book series, Lecture Notes in Computer Science and Artificial Intelligence. Beisecker recently presented this paper at the 13th Biennial Conference on Diagrams in Rome, Italy.