I was intrigued to read about the outdoor recreation valuation tool Orval (Top 10 green spaces in England and Wales for ‘welfare value’ named in study, 2 May). The degree of precision ascribed to the value of parks and outdoor spaces – eg Southampton Common at £7,408,252 – was amazing. Had the researchers had several bottles of the famous Belgian beer also called Orval?
Ken Lambert
Sheffield
• I wonder if Boris Johnson could be related to the pushmi-pullyu, that extraordinary beast discovered by Doctor Dolittle? So keen is he to fight the Russians in Ukraine (Report, 2 May), while here he has awarded a peerage to his close friend Evgeny Lebedev, now Lord Lebedev of Hampton and Siberia, who has named his dog Boris. Should he come clean?
Anna Ford
London