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The contamination of potable water due to the corrosion of lead pipes has been described in an earlier paper. The problem has been considerably reduced by the substitution of lead by copper pipes in new buildings. These copper plumbing systems, however, are often joined by lead‐tin solders which can corrode. The resulting concentrations of lead are often above the maximum admissable level of 0.05 mg 1— for drinking water. This paper reviews the use of solder and the various investigations into the corrosion of soldered joints.

The New Year will see Britain a member of the largest multi‐national free trade area in the world and there must be few who see it as anything less than the beginning of a new era, in trade, its trends, customs and usages and especially in the field of labour, relations, mobility, practices. Much can be foreseen but to some extent it is all very unpredictable. Optimists see it as a vast market of 250 millions, with a lot of money in their pockets, waiting for British exports; others, not quite so sure, fear the movement of trade may well be in reverse and if the increasing number of great articulated motor trucks, heavily laden with food and other goods, now spilling from the Channel ports into the roads of Kent are an indication, the last could well be true. They come from faraway places, not all in the European Economic Community; from Yugoslavia and Budapest, cities of the Rhineland, from Amsterdam, Stuttgart, Mulhouse and Milano. Kent has had its invasions before, with the Legions of Claudius and in 1940 when the battle roared through the Kentish skies. Hitherto quiet villagers are now in revolt against the pre‐juggernaut invasion; they, too, fear more will come with the enlarged EEC, thundering through their one‐street communities.

Experts respond to the same incentives as people in other areas of human action, and in the same ways. This insight is a truism: Experts are ordinary people, not otherworld creatures. The disciplined pursuit of this common sense observation helps us to reach conclusions about experts that might be surprising or counterintuitive.

Information retrieval as a concept or a technique is not generally recognized beyond the profession as a societal need or even necessarily as a useful tool. It has often been said of online that it is an expensive way of doing much faster what you could otherwise do manually in a library. I have long been perplexed by this misunderstanding of the power of online. Let me offer one possible explanation.

Index by subjects, compiled by K.G.B. Bakewell covering the following journals: Facilities Volumes 8‐17; Journal of Property Investment & Finance Volumes 8‐17; Property Management Volumes 8‐17; Structural Survey Volumes 8‐17.

Compiled by K.G.B. Bakewell covering the following journals published by MCB University Press: Facilities Volumes 8‐18; Journal of Property Investment & Finance Volumes 8‐18; Property Management Volumes 8‐18; Structural Survey Volumes 8‐18.

Compiled by K.G.B. Bakewell covering the following journals published by MCB University Press: Facilities Volumes 8‐17; Journal of Property Investment & Finance Volumes 8‐17; Property Management Volumes 8‐17; Structural Survey Volumes 8‐17.

Index by subjects, compiled by K.G.B. Bakewell covering the following journals: Facilities Volumes 8‐18; Journal of Property Investment & Finance Volumes 8‐18; Property Management Volumes 8‐18; Structural Survey Volumes 8‐18.

Compiled by K.G.B. Bakewell covering the following journals published by MCB University Press: Facilities Volumes 8‐18; Journal of Property Investment & Finance Volumes 8‐18; Property Management Volumes 8‐18; Structural Survey Volumes 8‐18.