University of Melbourne (B.A., 1921; M.A., 1923; D.Litt., 1930)
Appointed C.M.G. in 1956, commander of the Danish Order of the Dannebrog (1960), the Lebanese National Order of the Cedar (1961), the Greek Order of the Phoenix (1964) and the Italian Order of Merit (1967), and to the Légion d'honneur (1967).
In 1965 he was knighted.
The universities of New England (1957) and Sydney (1968) in Australia, Bristol (1948) and Durham (1953) in England, and British Columbia (1956) and McGill (1958) in Canada all bestowed honorary doctorates