In the same year he was appointed to the chair of mathematics at Adelaide, Australia, where he remained for 10 years. Adelaide was extremely fortunate in their choice of Lamb as their first professor of mathematics and he rapidly built the reputation of the mathematics department there.
Sa parehong taon na siya ay hihirangin upang angkinin ang upuan ng matematika at Adelaide, Australia, kung saan siya ay nanatili sa loob ng 10 taon. Adelaide ay lubhang mapalad sa kanilang pinili ng mga Lamb bilang kanilang unang propesor ng matematika at siya ay mabilis na binuo ng reputasyon ng matematika departamento doon.