Leeds: printed by Titus Wilson of Kendal for members if the School of English Language in The University of Leeds, 1937. 8vo., pp.179, paper wrappers; blue ink ownership inscription to front free endpaper, light foxing to fore-edge of text block, wear to extremities of wrappers, overall a very good copy.

Cambridge: Cambridge University Press, 2007. 8vo. pp. xi,449, black hardcover, gilt; author’s presentation inscription to front free endpaper, otherwise internally clean and fresh, very light rubbing to extremities, a very good copy indeed in a vg+ unclipped dust-jacket which is lightly rubbed and marked.

York: York Medieval Press, 2003. 8vo., pp.xvii,256, navy hardcover, gilt, with printed paper label to front board; ownership inscription to front paste-down endpaper, upper corners of boards lightly bruised, else fresh and near-fine. No dust-jacket, as issued.

Kendal: T. WILSON, 1902. 4to., pp.82, uncut, quarter bound in dark green morocco, green cloth boards, five raised bands, gilt, engraved b/w frontispiece and plates, folding colour plan to rear of volume; ownership bookplate to front paste-down endpaper, some mottling from paste-action to endpapers, light foxing to plates and margins of text throughout, light rubbing to boards, a very good copy.

Oxford University Press, 2007. Reprint (first paperback edition), 8vo., pp.xii,313, paperback; a fresh and near-fine copy.

Oxford: Clarendon Press, 1978. 8vo., pp.xi,250, navy cloth, gilt; foxing to top edges, else a fine, fresh copy, in vg price-clipped dust-jacket.

Cambridge University Press, 1981. 8vo., pp.xiv,321, black hardcover, gilt; ownership inscription to front paste-down endpaper, a couple of small marginal annotations to Appendix, else clean and very good, in very good unclipped dust-jacket, which is sunned to spine.

Published for the Canadian Corporation for Studies in Religion/Corporation Canadiennedes Sciences Religieuses, by Wilfrid Laurier University Press, 2004. 8vo., pp.ix,201, maroon cloth, gilt; a fine, fresh copy, in a very good+ unclipped dust-jacket.

Toronto/London: University of Toronto Press, in association with the Medieval Academy of America, 1995. 8vo., pp.viii,166, paperback; light shelfwear to wrappers, else a very good, clean copy.

London: Kegan Paul, 2003. 8vo.,pp. 732, printed hardcover; ownership autograph to half title page, foxing to upper edge of text block, a very good copy. No dust-jacket.

Philadelphia: University of Pennsylvania Press, 1995. 8vo., pp.xiii,329,(v), cloth lettered in blue, 11 b/w illustrations; a very good, clean copy. No dust-jacket.

Oxford: Oxford University Press, 1987. 8vo.,pp.cxiii,385, navy cloth, gilt, b/w frontispiece; ownership bookplate to front paste-down, very faint toning lines to endpapers, otherwise internally clean, a near-fine copy, in a very good unclipped dust-jacket, which is lightly sunned to spine.

London: The Early English Text Society by the Oxford University Press, 1968. Two volumes, part I & II, the set, 8vo.,pp. part I, lxxxii,378; part II, 154-268, part I in brown cloth, gilt lettering, part II in paperback, b/w frontispiece to part I; sunning to spines, a very good set.

University of Chicago Press, 2006. 8vo., pp.viii,348, paperback; fine.

Cambridge University Press, 1988. 8vo., pp.ix,186, black hardcover, gilt; small handwritten correction to p.7, otherwise a fine, fresh copy, in very good(+) unclipped dust-jacket.

Cambridge University Press, 2004. 8vo., pp.xiv,428, paperback; a very good, fresh copy.

Cambridge University Press, 2009. 8vo., pp.xv,356, pictorial hardcover; author’s presentation inscription to front free endpaper, a near-fine copy. No dust-jacket.

London: Edward Arnold, 1969. 8vo., pp.xxxii,343, grey cloth with pink title band to spine, gilt, b/w frontispiece; from the library of Gordon Leff, with author’s presentation inscription to front free endpaper, a very good, clean copy, in unclipped dust-jacket, which is lightly sunned to spine, with slight chipping to foot of spine, else very good.

Woodbridge: The Canterbury and York Society/The Boydell Press, 2011. 8vo., pp.lvii,360, black hardcover, gilt; a fresh and near-fine copy, with very slight creasing at head and tailbands.

Harlow: Longman, Pearson Education Limited, 2000. 8vo., pp.xvi,282, pictorial hardcover, with 7 b/w maps and 18 b/w illustrations; from the library of Professor Bernard Hamilton, with dedication inscription from the author to front free endpaper, lightly sunned to spine, a fresh and very good+ copy.