Tracing 10a 159 through time*

We know, thanks to our scribe Christoforus B., that 10a 159 was completed in July 1493.  But where did go from there?  We don’t know who the first owners may have been, but book stamps, inscriptions, and sale catalogues can tell us about later owners.


front flyleaf, Macer Floridus, De virtutibus herbarum , 1493, 10a 159


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A medieval ‘table of contents’

The idea of a table of contents or index is not a new one; in fact, even early Greek papyri contained sections and often lists of items.  In 10a 159, a 15th century Italian manuscript which includes Macer Floridus’ De virtutibus herbarum, the section headings are listed in the back of the volume.


f. 41r, Macer Floridus, De virtutibus herbarum , 1493, 10a 159

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Race, Genitals, and Walt Whitman in Dr. Leidy’s Lectures

– by Christopher Willoughby, Ph.D.*


Over the last five years, I have spent months conducting research at the Historical Medical Library at The College of Physicians of Philadelphia. In my dissertation, I examine the history of slavery and racial science in American medical schools before the Civil War, and my research at the College of Physicians played an essential role in completing this project. One of the central tasks that I undertook at the Historical Medical Library was an intensive study of Joseph Leidy, the Professor of Anatomy at the University of Pennsylvania’s Medical Department for much of the second half of the nineteenth century.

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Christoforus B. and De virtutibus herbarum

Dating medieval manuscripts can be tricky, as many of them aren’t dated by the scribe, nor do we know who the scribes were.  However, 10a 159, Macer Floridus’ De Virtutibus Herbarum, has both a date and a name.  We even know approximately how long it took our scribe to complete each section!

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