This volume includes the 4 chapbooks published in 1917-18 and presents, at first glance, an odd mixture. Chronologically, we have The Mirror of Water, written in 1914-16, ostensibly first published in 1916, but not available until 1918. Square Horizon follows and then come Equatorial (written in Spanish), Arctic Poems, Hallali and Tour Eiffel, the last two being composed in French. These final two publications from this period - both marked by textual experimentation - were very important for the rising wave of the Spanish avant-garde.

In this second edition, we have added an appendix containing the French version of the title poem, which is at least partly translated by the author, an early version of Tour Eiffel as published in the magazine Nord-Sud, together with a Spanish version of the finished poem. All notes and introductory material have also been updated.