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!
by Karie Youngdahl, Project Director, History of Vaccines
Robert Abbe (1851-1928), a New York surgeon and Fellow of The College of Physicians of Philadelphia, was an avid collector of medical and archaeological objects. Here at the College’s Historical Medical Library, we hold a number of Abbe’s items, including mementos from his friendship with Marie Curie. Of particular interest to the History of Vaccines project is Abbe’s collection of Louis Pasteur memorabilia, much of it dating from the 1922 centenary celebrations of Pasteur’s birth.
The collection includes a scrapbook with photographs of Pasteur and his family, French postage stamps featuring Pasteur as a national hero, postcards of monuments dedicated to the scientist, and commemorative tags picturing key moments from his life. However, what stands out in the collection is a letter in Pasteur’s handwriting. The letter is intriguing both because it involves several of the 19th century’s most eminent scientific figures and because it presents something of a mystery.