Published:7/7/96 Section: TRAVEL Page: 8J JOSE MARTI'S VISION OF CUBA PRESERVED IN KEY WEST INSTITUTE IS SCHOOL, MUSEUM AND A 'MECCA' JAY CLARKE Herald Travel Editor Cuban patriot Jose Marti loved the San Carlos Institute so much he called it La Casa Cuba -- the Cuban House. It was here in 1892 that Marti welded Key West's fragmented Cuban exile community into the Cuban Revolutionary Party, the ...