Neil H. Smull, the president emeritus of architect-engineer CSHQA who helped the Boise firm evolve from its one-architect roots into a western U.S. regional player with 85 employees and $8.5 million in revenue, died there on March 18. The firm's last surviving partner, he died of natural causes at age 90, says a spokeswoman. A landscape architect, Smull joined the firm in 1961, lured to Boise from Kansas by co-founder Glen E. Cline. As principal architect, Smull began to incorporate energy-efficient design elements in the 1970s. He retired in 1986. Smull became a Fellow of the American Institute of Architects in 1993 and received the Idaho chapter's Gold Medal in 2001.