The classic essay - not merely polemic, or opinion, or musing, or humorous squib - is a lost art. Not only is there no-one to write them nowadays, there is hardly anyone even to read them. But it is one of the most rarified, truly civilised pleasures of literature, one only for grown-ups - not tagging along breathlessly behind a novelist, scaling the heights with a poet, or taking notes as a student, but being admitted to the company of those who ruled intelligent conversation when conversation was considered an art in itself.
The words of Arthur Clutton-Brock in The Defects of English Prose stand not only as a pretty good description of the form in its heyday, but as a pretty good instance of it:
'The master of prose is not cold, but he will not let any word or image inflame him with a heat irrelevant to his purpose. Unhasting, unresting, he pursues it, subduing all the riches of his mind to it, rejecting all beauties that are not germane to it; making his own beauty out of the very accomplishment of it, out of the whole work and its proportions, so that you must read to the end before you know that it is beautiful'.
Though there are - naturally - many outstanding examples of the art omitted, this anthology includes many pieces (like Clutton-Brock's) by people who are more or less forgotten now. It's very unusual for a collection of essays to go through several editions, so - though it may now seem to have a disproportionate number of pieces from the mid-C20th - WE Williams was obviously doing something right.