[Mr. Swinnerton] sees life and renders it with a steadiness and detachment and patience quite foreign to my disposition. He has no underlying motive. He sees and tells. His aim is the attainment of that beauty which comes with exquisite presentation. Seen through his art, life is seen as one sees things through a crystal lens, more intensely, more completed, and with less turbidity. There the business begins and ends for him. He does not want you or any one to do anything. (p. x)

Mr. Swinnerton, like Mr. James Joyce, does not repudiate the depths for the sake of the surface. His people are not splashes of appearance, but living minds. Jenny and Emmy in [Nocturne] are realities inside and out; they are imaginative creatures so complete that one can think with ease of Jenny ten years hence or of Emmy as a baby. The fickle Alf is one of the most perfect Cockneys—a type so easy to caricature and so hard to get true—in fiction. If there exists a better writing of vulgar lovemaking, so base, so honest, so touchingly mean and so touchingly full of the carving for happiness than this that we have here in the chapter called After the Theatre, I do not know it. Only a novelist who has had his troubles can understand fully what a dance among china cups, what a skating over thin ice, what a tight-rope performance is achieved in this astound-ing chapter. A false note, one fatal line, would have ruined it all. On the one hand lay brutality; a hundred imitative louts could have written a similar chapter brutally, with the soul left out, we've loads of such "strong stuff" and it is nothing; on the other side was the still more dreadful fall into sentimentality, the tear of conscious tenderness, the redeeming glimpse of "better things" in Alf or Emmy that would at one stroke have converted their reality into a genteel masquerade. (pp. xi-xii)

Mr. Swinnerton has written four or five other novels before this one, but none of them compare with it in quality. His earlier books were strongly influenced by the work of George Gissing; they have something of the same fatigued greyness of texture and little of the artistic completeness and intense vision of Nocturne…. I add an intimate and personal satisfaction to my pleasant task of saluting this fine work that ends a brilliant apprenticeship and ranks Swinnerton as Master. This is a book that will not die. It is perfect, authentic, and alive. Whether a large and immediate popularity will fall to it I cannot say, but certainly the discriminating will find it and keep it and keep it alive. If Mr. Swinnerton were never to write another word I think he might count on this much of his work living, as much of the work of Mary Austen, W. H. Hudson, and Stephen Crane will live, when many of the more portentous reputations of to-day may have served their purpose in the world and become no more than fading names. (pp. xiii-xiv)