* We regret the increase from the earlier-indicated ‘likely’ and then ‘expectation’ price which has been necessitated by the Index's much greater-than-expected length, consequently increased cost of postage etc., some inflation and currency fluctuations, and our later expectation of free supplementation at two-yearly intervals, but will of course honour fully those who made commitments to subscribe (and even in a gratifying number of cases paid) at the provisional prices indicated earlier. We will also honour Index subscriptions (if based on an earlier Notice) received or postmarked by 15 June 1988, after which the above price in either currency will, unfortunately, have to prevail.—Ed.