1 Brass component 2 Data analysis find 3 Blood oxygenater 4 Nerce-cell interstice 6 Partum preceder 7 Transuranic element 8 Granulosa cell secretion 9 The "c" in "cAMP" 15 Genera, for example 17 Improvement over Lamarckism 19 Active _____ 20 Truffle, for one 22 Well-being 23 It links with thymine 24 25 Across, e.g. 28 Antibody/antigen test 29 I 30 Genes' chromosome positions
Editor's Note: Auburndale, Mass.-based Eric Albert, who constructs The Scientist's crossword puzzles, is one of the few people in the United States who earn their living solely from making puzzles. He uses a proprietary computer system of his own design to produce them. Major newspapers in which his work has appeared include the New York Times, Washington Post, New York Daily News, Toronto Sun, Cleveland Plain Dealer, and Chicago Sun Times.
He has also contributed to various puzzle magazines, including Dell Champion Crosswords, Games Magazine, Crossword Magazine, ...