From Plants of the Gods - Their Sacred, Healing and Hallucinogenic Powers by Richard Evans Schultes and Albert Hoffman.

Walter Benjamin, Ernst Bloch, Ernst Joel, Egon Wissing, Fritz Frankel, from Walter Benjamin's On Hashish translated from the German by Scott J. Thompson 1996.

Myslowitz-Braunschweig-Marseilles: The Story of a Hashish-Rausch [1930] Translated by Scott J. Thompson.

Hashish consists of the THC-rich resinous material of the cannabis plant, which is collected, dried, and then compressed into a variety of forms, such as balls, cakes, or cookie-like sheets. Pieces are then broken off, placed in pipes and smoked.