Behaviour

Octavo, 207 pp. very good copy in dustwrapper.

Octavo, paperback, 242 pp. illustrations.

Octavo, laminated boards, 352 pp. colour photographs, line drawings.

Octavo, 382 pp. photographs. Slightly faded spine.

Octavo, 382 pp. photographs, bookplate, chipped dustwrapper.

64 pp. blak and white illustrations and photographs.

Hardback 360 pp. illustrations.

Octavo, paperback, 360 pp. illustrations.

256 pp.

Quarto, 204 pp. colour plates, very good copy in dustwrapper.

Quarto, dustwrapper, 320 pp. colour photographs.

Small octavo, dustwrapper, 142 pp. colour illustrations.

Small octavo, paperback, 351 pp.

Octavo, paperback, 170 pp. colour illustrations, figures, tables.

Octavo, paperback, 176 pp. colour photographs.

Octavo, paperback, 188 pp. illustrations.

Quarto, dustwrapper, 230 pp. black and white photographs, line drawings.

Octavo, dustwrapper, 532 pp. colour photographs, line drawings.

Octavo, dustwrapper, 305 pp. colour photographs.

Quarto, dustwrapper, 639 pp. colour photographs fine copy.