From Tony Budd
Stephanie Pain’s piece about Glaisher and Coxwell’s balloon flight was very interesting (22 September, p 54). It was all the more impressive for the accuracy achieved by the (then newfangled) aneroid barometer. Even when unconscious, they apparently measured their maximum altitude as 11,278 metres. It would have been even more impressive in imperial measure: 37,001 feet 3.75 inches. Or were they perhaps “at around 37,000 feet”?
Wickford, Essex, UK
