Other valid references involving ergot derivatives could probably be found on chemical abstracts or ACS publications.

"Recent investigations on Ergot Alkaloids" Stoll, A. Received May 3, 1950.

I am not a chemist but I have taken Organic Chemistry, Analytical Chemistry, Physical Chemistry, and Inorganic Chemistry. Most Chemists are more like analysts who Identify and quantitatively measure the compnents in mixtures, unknown samples, metal ion contents in waters, ect.