 In 1954 , the tour company <unk> Swan invited Wheeler to provide lectures on the archaeology of ancient Greece aboard their Hellenic cruise line , which he did in 1955 . In 1957 , he then gave a guided tour of the archaeology of the Indian subcontinent for the rival tour company <unk> and <unk> . After Swans appointed him to the position of chairman of their Hellenic Cruise division , he made two fortnight tours a year , in spring and summer . In late 1969 he conducted the Swans tour to the Indian subcontinent , visiting the south and east of the republic as well as Ceylon . During this period , Wheeler had kept in contact with many of his friends and colleagues in India and Pakistan , helping to secure them work and funding where possible . 
