There are two version of the poem published in the New Directions collection of Pound's Early Poems.  On page 226 of that volume, at end of first version, editor Michael King notes:
 
From Umbra (1920), where table of contents notes "unpublished 1912."
 
Second version has editor's note at the end saying:
 
From typescript and manuscripts in the Pound Archive
 
so, Alchemist written in 1912, published in  Pound's Umbra 1920,  and another version that can be found in the Pound Archive, Yale University library.  
 
"This world is but a single dewdrop, set 
trembling upon a stem ;  and yet . . . and yet . . ."
                                              from "The Autumn Cricket,"  
                                             17th cent. Japanese Noh play
 
Robert E. Kibler, Ph.D.
Department of Communication Arts
Valley City State University
Valley City, North Dakota
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