To Have and Have Not on 15 October 1937 to a first edition print-run of approximately 10,000 copies. Cosmopolitan Magazine published a section of the novel as "One Trip Across" in 1934; Esquire Magazine published a section as "The Tradesman's Return" in 1936. The novel was adapted into a 1944 film, starring Humphrey Bogart and Lauren Bacall. The film, directed by Howard Hawks, changed the story's setting from Key West to Martinique under the Vichy regime, and made significant alterations to the plot, including getting rid of Hemingway's Marxist overtones, and turning the story into a romantic thriller centering on the sparks going on between
Sleep and memory a post-training REM sleep period to examine changes in P waves affecting reprocessing of recently acquired stimuli. It was found that not only were the P waves increased during post-training sleep but also the density of the waves. These findings may imply that P waves during REM sleep may help to activate critical forebrain and cortical structures dealing with memory consolidation. In a Hennevin et al. study, 1989, the mesencephalic reticular formation (MRF) was given light electrical stimulation, during REM sleep, which is known to have an advantageous effect for learning when applied after training. The rats in the experiment