Edmund Schulman in the 1950s had been studying trees under great stress at Timberline, and came to the realization that he put in an article in Science magazine called, "Longevity under Adversity in Conifers."
Edmund Schulman negli anni 50 stava studiando alberi sotto stress a Timberline, e scopri' qualcosa che espose in un articolo per la rivista Science intitolato "Longevita' delle conifere che vivono in condizioni avverse"