Mercury Seven summon the last group. The tests included spending hours on treadmills and tilt tables, submerging their feet in ice water, three doses of castor oil, and five enemas. Six candidates were rejected as too tall for the planned spacecraft. Another 33 failed or dropped out during the first phase of exams. Four more refused to take part in the second round of tests, which eliminated eight more candidates, leaving 18. From the 18, the first seven NASA astronauts were chosen, each a "superb physical specimen" with an IQ above 130, and the ability to function well both as part of
Group of Seven (artists) who specifically chose these seven men, but it is believed to have been Harris. By 1920, they were ready for their first exhibition thanks to the constant support and encouragement of Eric Brown, the director of the National Gallery at that time. Prior to this, many artists believed the Canadian landscape was not worthy of being painted. Reviews for the 1920 exhibition were mixed, but as the decade progressed the Group came to be recognized as pioneers of a new, Canadian, school of art. After Frank Johnston left the group in 1920 to move to Winnipeg, A. J. Casson was