Two faculty members from the University of Colorado at Boulder were elected to the National Academy of Sciences this week, bringing the total number of CU-Boulder professors to 17 who have been named to the elite institution. Richard McIntosh, a professor in CU-BoulderÂ’s molecular, cellular and developmental biology department, and Charles DePuy, an emeritus professor in CU-BoulderÂ’s chemistry and biochemistry department, were among the 60 members nationwide elected in 1999.