Charles Best (medical scientist) Banting and contributed to the discovery of the pancreatic hormone insulin, which led to an effective treatment for diabetes. In the spring of 1921, Banting travelled to Toronto to visit J.J.R. Macleod, professor of physiology at the University of Toronto, and asked Macleod if he could use his laboratory to isolate pancreatic extracts from dogs. Macleod was initially sceptical, but eventually agreed before leaving on holiday for the summer. Before leaving for Scotland he supplied Banting with ten dogs for experiment and two medical students, Charles Best and Clark Noble, as lab assistants. Since Banting required only one assistant, Best
Frederick Banting Seven artists A. Y. Jackson and Lawren Harris, sharing their love of the rugged Canadian landscape. In 1927 he made a sketching trip with Jackson to the St. Lawrence River in Quebec. Later that year they traveled to RCMP outposts in the Arctic on the Canadian Government supply ship Beothic. The sketches, done both in oils on birch panels and in pen and ink, were named after the places he visited: Craig Harbour, Ellesmere Island; Pond Inlet, Baylot Island; Eskimo tents at Etach; others were untitled. Jackson and Banting also made painting expeditions to Great Slave Lake, Walsh Lake (Northwest