New York: Oxford University Press. c1996. 8th printing of the second edition. Octavo, card covers. pp 330. Illustrated, bibliography, index. Three stripes to bottom page edges, else fine.

Toronto & Buffalo: Firefly Books, 2002. Large quarto, blue boards. pp 240. Colour illustrations, index. Fine in fine jacket. 2 kg parcel.

Cambridge, MA: Harvard University Press, 2005. Octavo, cloth & boards. pp (xii), 372. Colour photos, index. Fine in fine jacket.

London: HarperCollins (Harper Collins), 2001. 5th printing. 12mo, glossy illustrated boards. pp 383 + numerous colour plates. Illustrated, index. Fine copy.

Hartford, CT: State Geological and Natural History Survey of Connecticut, 1981. Bulletin 70, revised edition, Octavo, card covers. pp (xii), (9)-1020. Line drawings, index. Library discard: some cover fading; stip of cellotape with faint call number at foot of spine; pouch removed at rear; title page rubber stamped; covers have minor soiling, soft creases; VG clean, tight and unworn otherwise. Previously published in 1948. 1.5 kg.

Ithaca, New York: Comstock Publishing Company, 1948. Second printing of this revised edition, edited and revised by W.J. Gertsch. Octavo, greenish smooth buckram. pp (xii), 729. Photos and drawings in text, bibliography, index. Spine lightly sunned; tidy ink owner name at front; else a VG clean, tight and unworn copy. 2 kg parcel.