His other non-fiction includes Reflections on the Death of a Porcupine, but he's best known for novels like Aaron's Rod and Kangaroo.  
In I. A. Richards's Practical Criticism, this author's poem about a piano is the cause of much confusion, as the students Richards surveyed condemn its alleged sentimentality.  This author noted that he was "sick of lovable people" in "Elemental," and proposed to guide himself into the underworld with the aid of the titular flowers in "Bavarian Gentians."  His greatest poem concludes that the "voyage of oblivion awaits you" and enjoins the reader to build his own "ship of death," an image which this author also explores in his travel book Etruscan Places.  His other non-fiction includes Reflections on the Death of a Porcupine, but he's best known for novels like Aaron's Rod and Kangaroo.  FTP, name this British author of The Rainbow and Sons and Lovers.
In I. A. Richards's Practical Criticism, this author's poem about a piano is the cause of much confusion, as the students Richards surveyed condemn its alleged sentimentality.  
David Herbert Lawrence