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1. SEMICIKCI.E
2. STILTED SEMICIRCLE
3. SEGMENTAL
4. STILTED SEGMENTAL
5. HORSESHOE
6. STILTED HORSESHOE
7. POINTED Etjll LATERAL
FORMS OF THE ARCH
8. POINTED LANCET
9. PoiN i I, II I ii; 1 1 si;
10. POIN I 1 !■ -I . ,\I1.NTAL
11. TllUIJ, I IN 1 Ki.l)
12. KocK-ri;.NTiu;i)
13. FOIR-CENTRED
14. QL'ASI-FOUR-CENTRED
15. OGEE
16. OGEE
17. TREFOILED
18. TREFOILED
19. POINTED ARCH TRIFOLIATEF
20. SHOULDERED ARCH
