What Browning has taken for subject is an every-day occurrence.

We are grateful to him for writing on so universal a matter, even though it is unimportant; and he has tried to make it uncommon and important by weaving round it an intricate lace-work of psychology; yet, when we get down to its main lines, it is the ordinary event, especially commonplace in any idle society which clings to outward respectability and is dreadfully wearied of it.

Our neighbours across the Channel call it _La Crise_ when, after years of a quiet, not unhappy, excellent married existence, day succeeding day in unbroken continuity of easy affection and limited experience, the man or the woman, in full middle life, suddenly wearies of the apparent monotony, the uneventful love, the slow encroaching tide of the commonplace, and looks on these as fetters on their freedom, as walls which shut them in from the vivid interests of the outside world, from the gipsy roving of the passions.

The time arrives, when this becomes, they think, too great for endurance, and their impatience shows itself in a daily irritability quite new in the household, apparently causeless, full of sudden, inexplicable turns of thought and act which turn the peaceful into a tempestuous home.

It is not that the husband or the wife are inconstant by nature--to call _Fifine at the Fair_ a defence of inconstancy is to lose the truth of the matter--but it is the desire of momentary change, of a life set free from conventional barriers, of an outburst into the unknown, of the desire for new experiences, for something which will bring into play those parts of their nature of which they are vaguely conscious but which are as yet unused--new elements in their senses, intellect, imagination, even in their spirit, but not always in their conscience.