Organic chemistry Folder A.63. Systematic organic chemistry notes on acrylic compounds, index on front pages, mainly university but includes a little school material, paginated D1-D335, many pages sub-divided, some renumbered and a jump in numeration at D130. Folder A.64. Systematic organic chemistry notes on cyclic compounds (benzenoid rings), index on front pages, includes a little school material, paginated D400-D698.