CROSSVILLE -- Few folks could have forecast it 10 years ago, but the enrollment at the public schools in the heart of this Sand Mountain town is now larger than the town's population of 1,440. The word "crisol" - Spanish for melting pot - might explain it. Nearly 1,700 students attend Crossville's elementary, junior high and high schools, about double the enrollment of 10 years ago, and the reason is the arrival of Hispanic students in the surrounding area.