R. I .C. ReviewsR.Z. C. Reviews, published twice yearly, reviews areas of chemistry of interestto the chemist who has no specialist knowledge of the field under review,but who wishes to keep abreast of the growth of chemistry as a discipline.These reviews should prove useful to students in familiarizing themselveswith a particular field.R.I.C. Reviews interprets the significance of chemistry in a wide contextand publishes articles on the economic, social and historical aspects ofchemistry, as well as on the research and applied sectors.Suggestions for future titles are welcomed. Prospective contributors shouldwrite to the Editor, enclosing a synopsis (of about 250 words) indicating thescope of their subject. The preferred length for reviews is 8000 words.Subscriptions from R.I.C. members are handled by the Royal Institute ofChemistry, 30 Russell Square, London WClB 5DT. All other subscriptionsare handled by The Chemical Society Publications Sales Office, BlackhorseRoad, Letchworth, Herts SG6 1HN.Annual Subscription: f2.50 (R.I.C. members, f l .SO