29 sheets, A4, handwritten by SSKH, on one side only, diagrams included, pages numbered 1-19, undated;
1 sheet, A4, handwritten by SSKH, on one side only, diagram included, 'Bond lengths (con't.)', PCB 2, undated;
1 sheet, A4, handwritten by SSKH, on one side only, diagram included, 'Classification of Reactions', PCB 6, undated;
2 sheets, A4, handwritten by SSKH, on one side only, diagram included, annotated in pencil, 'Classification of Reagents', PCB7, PCB8, undated.