The October edition of the Mercer County Business Chronicle will be inserted in The Herald on Monday, Sept. 24. The magazine features Solar Atmospheres of Western Pennsylvania, a Hermitage plant that has signed a major contract with Boeing for work on its new line of jets. The story on Solar is one of the several in the October edition that includes a story on Hamill’s Gifts and Collectibles of Greenville, a profile on John McNeely Co.’s Armand Lauzon and other regular columns and stories.