Technological and industrial history of 20th-century Canada Blood tests would become increasingly sophisticated in the coming years. The electroencephalograph, used for the diagnosis of neurological disorders was introduced in major Canadian medical institutions in the late forties. The techniques for the mass production and distribution of vaccines and for the mass public inoculation were introduced during these years. Polio was a disease that affected large numbers of Canadian children during the first part of the 20th century. In the US, research by Dr. Jonas Salk in the late 1940s led to the discovery of vaccine for the prevention of this disease. However, there was no technique for
Salk Hall 1920s. Also contained in Salk Hall is the Elmer H. Grimm Sr. Pharmacy Museum, which opened in the fall of 1996. Located on the fourth floor, the museum holds pharmacy memorabilia such as drug products, equipment, and sundry products dating back to the early 20th century. Among the museum's possessions are two hand-carved finials, which were often found over the door or partitions that separated the main part of the pharmacy from the back room where pharmacists did most of their work, an old-fashioned powder mill, and a konseal machine. Salk Hall Jonas Salk Hall at the University of Pittsburgh