BY H. I. JENSEN. 173 



Fig. 10. — Porphyrite.f Loc. Point Arkwright. 

 Fig. 1 1 . — Porphyrite. * Loc. Point Arkwright. 

 Fig. 12.— Porphyrite.t Loc. High Cliff, Point Arkwright. 



Plate xiii. 

 Fig. 13. —Graphic Granophyre-Aplite.t Loc. High Cliff, Point Arkwright. 

 Fig. 14. — Quartz-Diorite.* Loc. Noosa Heads. 

 Fig. 15.— Same as Fig.l4.t 

 Fig. 16.— Monzonite. * Loc. Mt. Cooroy. 

 Fig. 17. — Monzonite. f Loc. Mt. Cooroy. 

 Fig.lS. — Solvsbergite.* Loc. Fife's Bange. 



Plate xiv. 

 Fig. 19. —Trachyte, t Loc. Mt. Beerwah. 

 Fig.20. — Comendite.t Mt. Conowrin. 

 Fig.21. — Pantellarite* (?). Loc. Mt. Tibrogargan. 

 Fig. 22. — Riebeckite Comendite* (?). Loc. Mt. Beerburrum. 

 Fig. 23. — Pantellarite.* Loc. Ngun-Ngun. 

 Fig.24.— Trachyte.* Loc. Big Hill, Caboolture, Woodford Road. 



Plate xv. 

 Fig. 25. — Comendite.t Loc. Mt. Cooran. 

 Fig.26. — Comendite.* Loc. Coolum Mountain. 

 Fig. 27. — Spherulitic Rhyolite.t Loc. Mt. Archer. 

 Fig. 28. — Axiolitic Rhyolite.t Loc. Maroochy River. 

 Fig. 29. — Axiolitic Rhyolite.* Loc. Maroochy River. 

 Fig.30.— Same as Fig.29f. 



Plate xvi. 

 Fig.31. — Banded Rhyolite.* Loc. Wardrop's, Toolburra Range. 

 Fig. 32. — Micropoikilitic Rhyolite.t Loc. Wardrop's, Toolburra Range. 

 Fig. 33. — Dacite.* Loc. Glass House Mountains. 

 Fig.34. — Quartz Andesite.* Loc. Eumundi. 



Fig.35. —Dacite with trachyte inclusion.* Loc. Glass House Mountains. 

 Fig. 36. — /Egirine Trachyte.* Loc. Round Mountain. 



* Nicols uncrossed, 

 t Nicols crossed. 



