This latest collection of Christmas poems ranges, as is customary, from traditional carols to Dylan Thomas' prose description (broken here into two entries) of useful and useless presents. And so we have three lines from Sir Walter Scott here, verses by Eleanor Farjeon here, there, and everywhere, and an excerpt from the opening scene of Hamlet facing Gerald William Barrax' ""Christmas 1959 et Cetera,"" in which carols and the star of Bethlehem must compete with beeping satellites. But besides all this Livingston has come up with a gratifying number of relatively modern poems, some in translation, which are not in every other Christmas anthology but which should start nosing out the late-19th and early-20th-century ones that are. Ranging in level from early childhood to adult, this is not for cover-to-cover reading, but the selections are conveniently arranged by topic (birth of Christ, tree and trimmings, etc.) as a source for programs, classroom readings, or whatever.