> The photo is of mahogany leaves, presumably Swietenia mahagoni. The original image was taken by Homer Edward Price and placed at https://commons.wikimedia.org

> The photo is of mahogany leaves, presumably Swietenia mahagoni. The original image was taken by Homer Edward Price and placed at https://commons.wikimedia.org/wiki/File:Mahogany-leaves_(5606894105).gif https://commons.wikimedia.org/wiki/File:Mahogany-leaves_(560... under a Creative Commons license; the image as used here has been cropped. Source: https://intronetworks.cs.luc.edu/current1/html/preface.html#a-note-on-the-cover https://intronetworks.cs.luc.edu/current1/html/preface.html#...