Substance Index Cyclic Compounds VIII, Polycyclic Compounds I (From the 4th Edition and the Additional and Supplementary Volumes to the 4th edition) || 4,4a,4b,5,6,6a,7,8,9b,10,11,11a-Dodecahydro-2H-cyclopenta[5,6]naphtho[2,1-d][1,3]dioxine (17) to Indazolo[3,2-a]isoquinoline (17)