Dear Roger,
Lynn Thorndike's edition of Sacrobosco and his commentators is well known
and well-read by historians of astronomy, such as myself. But
thanks for calling it to the attention of others, and for letting all
of us know that it has been digitized.
All best,
Sara
Sara Schechner, Ph.D.
I have been interested in armillary spheres for a while and gave a
presentation* at the NASS conference in Montreal in 2001 on this topic.
Today I was pleased to find at the University of Victoria library a reprint
of this early 13th century treatise on astronomy, De Sphaera by Johannes
de
