In the UK in the early 1950s, John Cornforth and Kenneth Callow at the National Institute for Medical Research collaborated with Glaxo to produce cortisone from hecogenin from sisal plants.
12.
A series of switchbacks led us through a forest of sisal plant with monstrous flower spikes, and as the vertiginous and very narrow path curled up the sheer cliffs, the views grew more astounding.
