Sentence:  We have used <WSD>lysergic</WSD> acid which is available commercially, and we have found that the conversion of <WSD>lysergic</WSD> acid to LSD can be accomplished in a relatively simple manner by procedures that can be followed by experienced chemists. In fact, we believe a crude form of LSD could be produced by a college chemistry student who had access to the equipment in a college chemistry laboratory. 
Meaning of the word marked with <WSD> tags:  (Used in the designation of lysergic acid and lysergic acid diethylamide): produced by hydrolysis from ergot. (from 1930s)