MSs of oddly decorated University of Mexico building. Interior HAS of library, students studying. Exterior shots of students, of prime minister John Diefenbaker and wife being escorted through by guide. TILT UP to facade of building. HAMLS of University of Mexico building, CU of fountain. Various shots of Diefenbaker and party, of Diefenbaker speaking. Front shot of motorcade in broad thoroughfare. LS of Diefenbaker's plane arriving. HALSs of welcoming ceremony, of Mexican Army honour guard on tarmac, of army band, of party of dignitaries welcoming visitors. Sequence showing Mexican "Wild West" show, horsemen riding about arena, lariat artist performing. Shot of President Adolfo Lopez Mateos of Mexico welcoming Diefenbaker at airport while Mexican Army honour guard and band stand at attention in background. Three-shot of Mexican children wearing sombreros. Shots of the Wild West show, of welcoming of Diefenbaker by President Mateos, MSs of honour guard. Brief ESTABLISHING SHOT of Mexico City.