1. M iscellaneous 2. M acrocyclic com pounds 3. N a tu ra l co m p o u n d s from p lan ts 4. N a tu ral
2. co m p o u n d s from anim als 5. M o n o terp en es 6 . S esq u iterp en es 7. D iterp e n es 8 . T rite rp e n e s
3. S tero id s 10. L ectu res review articles biographical m em oirs. ( 1 ) 1911 1 U e b e r P hen y Im eth y Ik eten . D iss. K a rlsru h e. (2 ) 1 (W ith H . Staudinger) Z u r K e n n tn is d er K etene. Justus Liebigs Annin Chem.
4. 380 278.
5. 5 D ie T otalsy n th ese des F enchons. Ber. dt. chem;Ges.,1917