Newbold was one of the first professors of philosophy at Penn. He
didn't publish a great deal, and the story is that he went mad, either
as a result of his obsession with the Voynich manuscript, or vice
versa.
The Rare Book library at Penn is just a few blocks from the White Dog
restaurant, once the home of Madame Blavatsky. The bookseller William
H. Allen got his start in part with the acquisition of Newbold's
library; his first store was located at 3413 Walnut Street in West
Philadelphia, now the site of (among other Penn offices) the Institute
for Research in Cognitive Studies.