Copy of a letter from Pontecorvo to Lord MacLehose concerning his recent trip to China and "the complete failure of the main purpose"

Scope and Content

The main purpose of the trip was field work on the vegetation and flora above the tree line in areas near the Tien Shan, Shihezi /Urumqi and North East Qinghai. Pontecorvo explained how his China colleagues invested "all sorts of excuses" to prevent him going to these areas above the tree line.