144 N. Z. ROCKS. 
7 Pyvitous Rock. Great Barrier. 
8 Diorite. Needles Bay, Great Barrier. 
9 Trachyte Tufa. Arid Island. 
10 Indurated Magnesia Clay. Maungapiko, Great 
Barrier. 
11 Peacock Copper Ore. Otea Copper Mine, Great 
Barrier. 
12 Pumiceous Scoria. Ahumata, Great Barrier, 
13 Granite. Mine Bay, Great Barrier. 
14 Siliceous veins, in Tufa. Ahumata, Great Barrier. 
15 Granite. Mine Bay, Great Barrier. 
16 Trachyte Tufa. Whangaparapara, Great Barrier, 
_17 Silicified Slate. Mount Hobson, Great Barrier, 
18 Quartz Porphyry. Harataonga, Great Barrier, 
19 Pink Slate. Mount Young, Great Barrier. 
20 Trachy-dolerite. Arid Island. 
21 Recent Tufa. Little Barrier. 
22 Tufa. Little Barrier. 
23 Compact Trachyte. Little Barrier. 
24 Vein, in Trachyte Tufa. Great Barrier. 
25 Diorite Sandstone. Little Barrier. 
26 Slate. Waikaro. 
27 Vesicular Trachyte. Little Barrier. 
28 Granular Trachyte. Little Barrier. 
29 Altered Tufa. Little Barrier. 
30 Trachy-dolerite Tufa. Hen. 
31 Altered Tufa. Hen. 
32 Altered Tufa. Hen. 
33 Trachy-dolerite. Chicken. 
34 Sandstone. Chicken. 
WHANGAREI DISTRICT. 
1 Cale Spar. Limestone Island. 
2 Limestone. Abbey Caves. 
3 Limestone. South side of road to Maungatapere, 
4 Flint. Kawa Kawa. 
5 Compact Limestone. Razorback Range. 
6 Grey Limestone. Limestone Island. 
7 Chert, with Iron Pyrites. Whangarei. 
