![Photo of a letter written by Edmond Halley](https://www.haverford.edu/sites/default/files/styles/marquee_top_image/public/Homepage/in-the-collection-halley.jpg?itok=uYvpNdPy)
In the Collection: Edmond Halley
Best known for his predictions regarding a certain comet, Edmond Halley was an all-around genius who built the first diving bell, devised a working model of a magnetic compass, and pioneered actuarial science.
"In the Collection" highlights some of the rare and marvelous items that are part of Magill Library's Special Collections.