A PUBLISHER'S VIEW

In the next twenty‐five minutes, I intend to survey the various categories of books and periodicals on scientific and technical subjects which are issued by publishing houses or learned societies for trade sale. I shall discuss the type of index, if any, appropriate to each type of publication, and the best person to compile it. At the same time, I want to consider whether there are any practical difficulties in the way of following the ideal course and to suggest answers to some of Mr Hinsley's criticisms.