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N. Z. ROCKS. 148 
Trachyte Tufa. Preece’s Point. 
Quartz. Pukawau Creek. 
Quartz. Pukawau Creek. 
MANUKAU NORTH HEAD DISTRICT, 
(See Trans. N. Z. Inst., Vol. ii.) 
Breccia. 
Altered Tufa. 
Trachyte Porphyry. 
Junction of Dyke with Rock. 
Dolerite. 
Jasperoid Quartz. 
Tufaceous Sandstone. 
Tufaceous Agglomerate. 
Lava (Basaltic). 
AUCKLAND DISTRICT. 
Voleanic Bombs. (See also on the floor.) 
Tncrustation in a cave, in Basaltic Lava. Three 
Kings. 
Calcined Quartz, included in Lava. 
Lava. Mount Eden. 
Vesicular Tufa, top of crater wall. Rangitoto. 
Trachyte Tufa. Very top of Rangitoto. 
Trachyte Tufa, bottom of crater. ” Rangitoto. 
Limestone. 
Parnell Grit. Tamaki. 
BARRIER ISLANDS. 
Slate Breccia, cemented by Quartz. Copper Mine, 
Great: Barrier. 
Trachyte Tufa, altered by being overflown by a 
stream of Lava, Flat Island. 
Trachyte Tufa. Tryphena, Great Barrier. 
Trachyte Tufa, passing into Laterite. Kaiaraia, 
Great Barrier. 
Diorite Sandstone. Great Barrier. 
Felstone. Mine Bay, Great Barrier. 
