f the locality of their meeting, which might have taken place
almost anywhere in Europe, perhaps even at Salernum, a favorite resort
of the invalided Crusaders in these times. Finally, Dr. Payne disposes
effectually of the authenticity of the entire story by calling
attention to the fact that the chapter referred to in the Compendium
is marked plainly "_Additio_," without indicating whether this
addition is from the pen of Gilbert or some later glossator.

Finally, I may suggest another line of argument, which, so far as I
know, has not yet been advanced for the determination of the period of
Gilbert.

The Compendium Medicinae of Gilbert is, of course, a compendium of
internal medicine. But the book is also something more. Not less
than fifty chapters are devoted to a comparatively full discussion of
wounds, fractures and dislocations, lithotomy, herniotomy, fistulae
and the various diseases on the border line between medicine and
surgery. Not a single surgical writer, however, is quoted by name.
Nevertheless the major part of these surgical chapters are either
literal copies, or very close paraphrases, of the similar chapters
of the "_Chirurgia_" of Roger of Parma, a distinguished professor
in Salernum and the pioneer of modern surgery. The precise period
of Roger is not definitely settled by the unanimous agreement of
modern historians, but in the "_Epilogus_" of the "_Glosulae Quatuor
Magistrorum_" it is said that Roger's "_Chirurgia_" was "_in lucem et
ordinem redactum_" by Guido Arietinus, in the year of our Lord 1230.
This date, while perhaps not unquestionable, is also adopted by De
Renzi, the Italian historian of Medicine. The original MS. of Roger's
work is said to be still in existence in the Magliabechian Library
in Florence, but it has never been published in its original form.[5]
Roland of Parma, however, a pupil of Roger, published in 1264 what
purports to be a copy of Roger's "_Chirurgia_" with some notes and
additions of his own, and it is from this MS. of Roland that all our
copies of Roger's work have been printed. Roger's "_Chirurgia_" was
popularly known as the "_Rogerina_;" the edition of Roland as the
"_Rolandina_." They are frequently confounded, but are not identical,
though the additions of Roland are usually regarded as of little
importance. In the absence of Roger's manuscript, however, they lead
often to considerable confusion, as it is not always easy to determine
in the printed copies of