FREDERICK WILLIAM FROHAWK: NATURAL HISTORY OF BRITISH BUTTERFLIES..., London, Hutchinson, [1914], 1st edition, 2 vols, 64 plates including 60 coloured as called for, fo, original cloth, d/ws (part losses) + A D A RUSWURM: ABERRATIONS OF BRITISH BUTTERFLIES, Faringdon, Oxon, E W Classey, 1978, 1st edition, 4to, original cloth, d/w (price clipped) + JEREMY THOMAS & RICHARD LEWINGTON: THE BUTTERFLIES OF BRITAIN AND IRELAND, Gillingham, Dorset, British Wildlife Publishing, 2010, revised edition, signed by both authors, 4to, original cloth, d/w + JIM PORTER: THE COLOUR IDENTIFICATION GUIDE TO CATERPILLARS OF THE BRITISH ISLES, London, Viking, 1997, 1st edition, original cloth, d/w + JIM ASHER & OTHERS: THE MILLENNIUM ATLAS OF BUTTERFLIES IN BRITAIN AND IRELAND, Oxford University Press, 2001, reprint, original cloth, d/w (6)