Trans, N.Z. Inst., Vor. 55. PLATE 6. 
Fie. 1.—Crystalline — rich in foraminife ius polyzoan, and echinodermal remains. 
Cong glomerate in Waitemata beds, lower Rangitopuni Stream. 
Fic. 2.—Gneissic hornblende diorite. Typical of many such diorites in the Waitemata 
cong em 
Fic. йге g ann diorite viewed under — nico 
Fie. ional: fm hornblende enclosing basic abradorite in an ophitic horn- 
blende-gabbro the Wa кеген еси ates. 
Ето. 5.— Plagioclase and de ved saussurite poecilitic My enclosing partially serpen- 
ti ized olivine in feldspathic peridotite from the “serpentine” quarry at 
arakakat 
Fie. 6.— Anorthositio phase of the same ое 
enwrapped by aecompanying diallag 
LE 
Highly basie labradorite is 
Face p. 144.] Magnification in all Бом 35 diameters. 
