SCIENCE *4E 5112.50
Bacon, Roger, 12147-1294,
The opus majus of Roger Bacon; a translation by Robert Belle Burke, Philadelphia, University of Pennsylvania press; London, Humphrey Milford, Oxford university press, 1928,
2 vols, fronts, plates, ports, facsims, (1 fold,) tab, diagrs, 24 en,
Paged continuously,