Hans Nintzel collected these small works together since each in itself is too short to require a dedicated book. Nevertheless, Hans considered them to hold valuable clues to the achievement of the Great Work in Alchemy. Two of the original works, Zoroasters Cave (Extract) and A Treatise Written by a Celebrated Philosopher, are now in The R.A.M.S. Library of Alchemy's Bacstrom's Notebooks Part 3, since their English translations originated in the Bacstrom notebooks. The works in this Volume include some of the writings of Raymond Lully, Eugeneous Philaletha, Lamspring, Louis Grassot, Count Trevisan, and many short manuscripts on Alchemical processes from the Sloane Manuscripts Collection of the British Museum.