MAPS OF LAMBERT, GUIDO, HENRY OF MAYENCE, AND OTHERS In addition to the above, for which we have prototypes from the period before 1100, there are a number of maps of the world of the twelfth and early thirteenth centuries, the prototypes of which either have been lost or never existed. Among the most notable of these is one found in certain manuscripts of Lambert’s _Liber floridus_.[542] It was compiled from the usual medieval authorities, Isidore, Orosius, Julius Honorius, Martianus Capella, Pomponius Mela, Solinus, the _Pseudo-Callisthenes_, and the Bible, though there also appear upon it a few names that could have been taken only from contemporary sources. The influence of Macrobius is most strikingly revealed, for, unlike most other medieval maps which indicate the known world (Asia, Europe, and Africa) as occupying the entire area or by far the greater part of the world disk (as in the Beatus group), Lambert’s map divides the disk along its diameter by a zone representing the course of the sun and places in the southern hemisphere an austral continent of magnitude equal to that of the _oikoumene_.[543] Guido’s compilation of geographical works, made in 1119, contains in two manuscripts not only a T-O map but also a map of the world accompanying a selection from the book of the anonymous Ravenna geographer and a detailed map of Italy and the surrounding lands. The map of the world is peculiar because of the enormous area which the Mediterranean occupies. Miller believes it to be a reduced sketch of a large map of the world and holds that the detailed map of Italy is a copy of a small portion of this same original.[544] A compilation of the _De imagine mundi_, put together by one Henry, canon of the Church of St. Mary in Mayence, in 1100 and preserved in a late twelfth-century copy in Cambridge, England, contains a world map (see below, p. 245, Fig. 6, inset). Though indirectly made from the sources that the writers of the _De imagine mundi_ and other medieval cosmographies utilized, it was probably not compiled directly from the _De imagine mundi_ but rather from a large wall map. Its affinities to the immense late thirteenth-century world disk in Hereford Cathedral make it seem possible that both had a common source. In addition to the older nomenclature, about a dozen more modern place names are to be found upon it.[545] A map of the world which somewhat resembles that of Henry of Mayence is also to be found in two manuscripts of the _Chronica maiora_ (or _Historia maiora_) of Matthew Paris. Though there are many names that have come down to modern times, the geography is meager and poor, in striking contrast to the detail of Matthew’s map of Britain,[546] to which reference is made below.