The entire volume, with a sole exception, and that not marked, is written in the conventional four-line stanza, in which so much of Mr. Carman’s work of late has been cast. Within this compass, the accomplishment is as varied as to theme and diction, as that of his other work; but when one sings on and on in the same numbers, it induces a state of mental indolence in the reader, and presupposes a similar state in the writer. The verse goes purling musically along, until, as running water exercises an hypnotic spell, one is hypnotized by the mere melody of the lines, and comes to consciousness to find that he has no notion what they are about, and must re-read them to find out. To be sure, the poems will bear reviewing, and will make new disclosures whenever one returns to them; but had they greater variety as to manner, their appeal would be stronger, as the mind would be startled to perception by unexpectedness, instead of lulled by the same note in liquid reiterance. It is quite possible that Mr. Carman has a principle at stake in this,—it may indeed be a reactionary measure against over-evident mechanism, a wholesome desire for simplicity. Now simplicity is one of the first canons of art, but variety in metre and form is another canon by no means annulling the first. One may have variety to the superlative degree, and never depart from the fitness and clearness that spell simplicity. Were _The Green Book of the Bards_ relieved by contrasts of form, it would rank with the finest work of Mr. Carman’s pen, as the individual poems have strong basic ideas,—such as the “Creature Catechism,” full of pregnant thought, and speaking a vital, spiritual word as to the mystic union of the creative Soul with the creatures of feather and fin and fleece. The marked evolution of Mr. Carman’s philosophy of life, as influenced by his growing identity with nature, comes out so strongly in the “Pipes of Pan” series, and in _The Word at Saint Kavin’s_, as almost to reveal a new individuality. He had gone out in the light-foot, light-heart days of Vagabondia, holidaying with the woods and winds; glad to be quit of the gyves, to drink from the wayside spring, eat of the forest fruit, sleep ’neath the tent of night, and dream to the rune of the pines. He had sought nature in a mood of pagan joy; but the wayside spring had excited a thirst it could not quench, and the forest fruit a hunger it could not allay, and the blithe seeker of freedom and delight became at length the anointed votary, and lingered to watch the God at work shaping life from death, and expressing His yearning in beauty.