The Lyman Duff Medical Building was constructed in the 1960's to provide additional space to the Pathological Institute. It now provides modern labs and facilities for several departments, and houses four additional laboratories for the Sheldon Biotechnology Centre in its Gatehouse.
Built in 1965, the McIntyre Medical Building is easily recognizable due to its circular shape. It has a connecting bridge to the Stewart Biology Building and a link to the Life Sciences Complex.
Built in 1968, the Centennial Centre is occupied by a wide variety of student organizations, services and facilities, including the MacDonald Campus Students' Society, Student Health Services, and modern Food and Nutrition labs. It also houses the Lyman Entomological Museum, whose insect collection consists of over 2.8 million specimens, making it the largest university insect collection in the country.