Little Arthur Peter Platypus, Jr., seems to forget everything from his hat to whether or not it's a school day, till something extraodinary or important, like Mom's birthday, comes up; then he's prepared to celebrate with a profusion of balloons and her favorite flowers. Arthur is a cute little guy, a furry, duck-billed, pink-cheeked creature presented with amusing variety in Stevenson's cartoonish, watercolor-tinted drawings; but his memory lapses and attempts to prevent them are a little too implausible--and finally too numerous--to be more than mildly entertaining. And there are a couple of careless details: a clock with its hands in an impossible position; and a school class at some imaginary level where students are learning both the names of the continents and the sum of two plus two. Usable as an easy reader.