Trans. N.Z. Inst. Vol. XXXIV. Pl. XXIII. 



B. 



Fragment in Conglomerate from Point 

 East op Whangapabaoa. 



Magnified 50 Diameters. 



Altered olivine crystals (two shown) I 

 Augite crystals ... ... 1 1 



Feldspar crystals ... ... 1 



Magnetite specks 



Chlorite lining inside of cavities 



ROCK SECTIONS.— Mulgan. 



