Hamlyn, London, 1990.  ISBN 0-600-57087-8.  Folio soft cover, 365+ pages, including Index of Experiments and Subject Index.  Very good; some edge and cover wear with a bit of colour chipping; binding sound.  Number inked at bottom of title page; remainder of interior clean and unmarked; black & white illustrations on every page.  ‘Thousands Of Odd Facts, Hundreds Of Ridiculous Experiments, Ideal For All Ages From 8-80’ (from front wrap)