London: Fifield, 1920. Second edition, re-set, with the author's corrections and additions to index. Octavo, blue cloth. pp 282, (2, ads). Light damp spotting to front and rear cover; yellowing and light foxing to endpapers; yellowing to page edges; rubber stamped private owner name at front, else a VG clean, tight and unworn copy.

London: Wm. Dawson & Sons, 1956. Card covers. pp 610, (4, ads) + 68 plates on 34 leaves, some illustrations in text. Covers have been laminated; just a few red ink notes in text margins; VG otherwise. An extensive and useful reference by a distinguished antiquarian bookseller. 1.1 kg parcel. ; Octavo

Pittsburgh: University of Pittsburg Press, 1966. Black cloth. pp xviii, 362. Small soft corner bump to front cover, else fine in VG jacket. Eight lectures given in 1963-1964 by Herbert Simon, Dudley Shapere, Sylvain Bromberger, Carl Hempel, Wesley Salmon, Joseph Clark, Thomas Gold and Henry Margenau ; Octavo

Reading, MA: Perseus, 1998. pp (x), 194. Fine in fine jacket. 0738200026

Cambridge, England: Cambridge University Press, 1946. Stapled in buff card covers. Ink name to upper margin of front cover, soft crease to rear cover, VG otherwise. ; Octavo; (26), [2] pages

University of Toronto Press, 1966. (xiv), 146 pp, red cloth stamped in gilt. Fine copy. Articles in English and French on L'Abbé Léon Provancher, George Lawson, Rev. Dr. James Bovell, J.W. Dawson, and more. Number 9 in the Royal Society of Canada's "Studia Varia" series.; Octavo.

University of Toronto Press, 1966. (xiv), 146 pp, red cloth stamped in gilt. Previous owner's name on front pastedown, very light rubbing to corners and spine tips, otherwise fine. Dust jacket with minor edge chips and small closed tears, light surface rubbing increasing at flap folds and spine, else very good. Articles in English and French on L'Abbé Léon Provancher, George Lawson, Rev. Dr. James Bovell, J.W. Dawson, and more. Number 9 in the Royal Society of Canada's "Studia Varia" series.; Octavo.

Ottawa: National Research Council of Canada Associate Committee on Soil and Snow Mechanics, January, 1963. Quarto, grey printed card covers, navy blue cloth spine, stapled binding, pp. 231 + 9 (Appendix), richly illustrated throughout with maps, charts, graphs, and black & white photos. Light fraying to spine ends with a 1 cm tear at both head & heel, staple puncture at top edge of upper cover, else a very good, clean, tight copy. Loosely inserted is A REVIEW OF PERMAFROST INVESTIGATIONS IN CANADA by R.J.E. Brown. Published in Ottawa, December 1962. Reprinted from The Canadian Geographer vol. VI, nos. 3-4, pp. 162-165. Cream printed wrappers, stapled binding, Fine, clean copy.

London: Percival Marshall, no date (1904). Octavo, maroon cloth gilt lettered. pp 105, (7) + 20 plates. Numerous text illustrations. Slight rubbing to spine ends, offset yellowing to enpapers, else a fine, bright and tight copy, no owner names. Popular science, an early book on the subject. The Curies only discovered radium in 1898.

London: Weidenfeld & Nicolson, 2002. Brown cloth. pp (xx), 412. Illustrated, index. Fine in fine jacket. 0297645978

New York: HarperCollins. c2002. Third printing. Octavo, pp (xx), 380 + photos. Index. Fine in fine jacket. 0060184078

London: Macmillan, 1966. Blue-green cloth. Index. Text paper and page edges lightly yellowed; light damp stains to covers; VG clean & unworn copy otherwise. Price-clipped jacket is stained, with red lettering on spine faded away; fair. ; Octavo; xii, 339 pages

Waterloo, ON: Wilfrid Laurier University Press, 1980. Octavo, card covers. pp (xviii), 246. Spine has nicks and rubbing to ends, corner crease to front cover, VG otherwise. Text in English and French.

London: The Library Association, 1971. Brown cloth. pp x, 508 plus 17 plates; bibliography, index. Five digit number rubber stamped at front; damp spotting to top page edges, else fine. Jacket has nicks, light spine yellowing, external tape repairs at foot of spine, VG otherwise. 1 kg parcel; Octavo

Minneapolis: University of Minnesota Press, 1984. Red cloth, pp 342. Fine, jacketless copy, no owner marks.; Octavo 0816610878

London: Pitman, 1926. 12mo, buff boards printed in black. pp 62. 12 photos & illustrations in text. Spine a little darkened, lightly rubbed, with a very small chip at foot; covers lightly dust soiled; else a VG clean, tight and unworn jacketless copy, no owner names. THE FIRST BOOK IN ENGLISH ON TELEVISION.

Toronto: Viking, c1998. Second printing. pp (xiv), 271, [3]. Illustrations. Very small soft corner crease to first few leaves, else a fine copy. Jacket has a small corner crease to front flap, else fine. Most interesting essays on some oddities of general science. 067087146x