Book jacket and pages yellowing with age Simon and Schuster, 1967 book club edition, 222 pages Mrs. BENEKER, deciding to dip her toe in the great muddy harbor of Adult Education (Professor Serota's Religion Class, Colum-bia, Tuesdays, 4: 10 to 6 P.M.), MRs. BENEKER, astonished by the energetic preparations for Natural Childbirth on the part of her son-in-law, Mrs. BENEKER, on her last visit to the psychi-atrist, summoning the courage to tell him he really ought to replace his threadbare rug, Mrs. Beneker, intrepidly flying.off to funerals or sickbeds, but convinced that avenging angels will puncture the gas tanks the moment she boards a plane for pleasure, Mrs. Beneker, wondering if it is morally right to take hormone pills, Mrs. BeNekER, loathing her son's girl, Carla, for being ersatz Vanessa Redgrave, yet agreeing to help her with the necessary cash for a "good, clean abortion,"