This slight volume (perhaps fifty or sixty pages) appeared in France in 1939, and again in a revised edition in 1957. Some twenty sketches illustrate her theory of tropisms--those indefinable responses which underlie the most commonplace conversations, gestures, ""harmless appearances."" Responses which may be thoughts, or feelings, of an unidentified he, or she, or they; he (a teacher) prying into the mysteries of his more illustrious subjects; she waiting, motionlessly on a bed, or (another she) rummaging, appropriating, everything, everywhere; they, a family moving to the city; housewives nattering in a tearoom; an old couple, who have nothing more to hope for in life beyond letting time go by....Tropisms--sometimes the most ineffable of emanations, and while the book is rather incidental, it does show the author's gift with this particular kind of subliminal demonstration.