Tackling the classic question, and noting that chickens are a descendant of the ancient archeopteryx flying beast, Harrowsmith, a Canadian farming journal, claims to have solved the problem: The egg came first . . . Reader's Digest begins a Korean edition next month . . . Newsweek is not buying Horizon magazine after all . . . Consumer Reports once again rates the food processors, in light of the 14 that have arrived on the scene in the last year, and still finds Cuisinart the best of the bunch . . . Following the sold-out success of last fall's theme issue on microprocessors, Scientific American devotes its entire September issue to Evolution . . . Capitalizing on the election of a new pope, National Catholic Reporter starts a subscription campaign with ads declaring: "Fellow Travelers. If you think the new pope's big concerns are birth control, abortion and women's ordination, you don't know the pivotal Catholic issues."

With a shortage of editors, Esquire continues to rely heavily on book excerpts. A Robert Redford bylined piece on riding the trails embarrassingly duplicates an earlier Redford piece in National Geographic, but Arthur Schlesinger's "Robert Kennedy: The Lost President" in the Aug. 15 issue, is an insightful look at Kennedy's strengths and weaknesses . . . Magazine ad revenues were up 19 percent over the first half of 1977, versus an increase of 11 percent in network revenues . . . The slick German monthly Geo will launch a U.S. edition to compete with National Geographic . . . the August International Review of Food and Wine takes a friendly look at Chesapeake crabs.