Howe also argues in "My Emily Dickinson" that Emily Dickinson was formatively influenced by Edwards's writings, and that she "took both his legend and his learning, tore them free from his own humorlessness and the dead weight of doctrinaire Calvinism, then applied the freshness of his perception to the dead weight of American poetry as she knew it." Most recently, Edwards' texts are also studied with the use of digital methods. Scholars from the Institute of English Studies at the Jagiellonian University have applied stylometry to establish stylistic connections between different groups of Edwards' sermons. Similarly, Rob Boss from Southwestern Baptist Theological Seminary has used visual graphics software to explore the conceptual connections between Scripture and Nature in the theology of Edwards. The eminence of many descendants of Edwards led some Progressive Era scholars to view him as proof of eugenics (of course he died at 54). Upon American culture, his descendants have had a disproportionate effect: his biographer George Marsden notes that "the Edwards family produced scores of clergymen, thirteen presidents of higher learning, sixty-five professors, and many other persons of notable achievements." The Beinecke Rare Book & Manuscript Library at Yale University holds the majority of Edwards' surviving manuscripts, including over one thousand sermons, notebooks, correspondence, printed materials, and artifacts. Two of Edwards' manuscript sermons, a 1737 letter to Mrs. Hannah Morse, and some original minutes of a town meeting in Northampton are held by The Presbyterian Historical Society in Philadelphia, Pennsylvania. The entire corpus of Edwards' works, including previously unpublished works, is available online through the Jonathan Edwards Center at Yale University website. The Works of Jonathan Edwards project at Yale has been bringing out scholarly editions of Edwards based on fresh transcriptions of his manuscripts since the 1950s; there are 26 volumes so far. Many of Edwards' works have been regularly reprinted. Some of the major works include:  The text of many of Edwards's sermons have been preserved, some are still published and read today among general anthologies of American literature. Among his more well-known sermons are: