THE GEOLOGY OE AUCKLAND. 
28 
coal, and can assure the people of Auckland, that the Brown 
Coal of this country is quite as good as that which is used in 
Germany for the purposes I have just mentioned. I would strongly 
recommend that any Company which may be formed for the 
purpose of working the coal should also at the same time 
establish Potteries for the manufacture of earthenware. 
Remarkably suitable Clays of every necessary variety have been 
shown to exist in the immediate neighbourhood of the coal-fields, 
by the borings which have been made by the Provincial 
Government at my request/* By the establishment of such 
works, the value of the coal would be made apparent to everv- 
* The following are the results of two borings made in the flats between 
Drury Hotel and the Drury Ranges, under the directions of Mr. Ninnis, 
to whom I am indebted for the tables subjoined:— 
Boring Ho. I. 
1) 
Feet. 
2. 
Inch. 
0 
Dark soil. 
2) 
9. 
6 
Plastic clay, yellow and blue. 
8) 
1. 
6 
Gravel and pebbles. 
4) 
5) 
1 b 
0 
Yellow clay. 
3. 
0 
Grey clay. 
6) 
7) 
|C>. 
0 
Blue clay. 
11. 
0 
Arenaceous clay. 
8) 
15. 
0 
Grey clay. 
9) 
2. 
0 
Greenish clay. 
10) 
1. 
0 
Dark grey clay. 
ii) 
5. 
0 
Bluish grey clay. 
12) 
2. 
0 
Sandy clay. 
18) 
5. 
2 
Volcanic ashes and gravel. 
14) 
5. 
6 
Hard basaltic rock. 
69. 
8 
1) 
1. 
Boring No. II. 
0 Dark soil. 
2) 
7. 
0 
Yellow clay. 
8) 
6, 
6 
White clay. 
4) 
7. 
0 
Yellow and red clay 
5) 
1. 
4 
Brown clay. 
C) 
8. 
0 
Yellow clay. 
7) 
5. 
0 
Brown. 
8) 
4. 
0 
Reddish. 
A) 
10. 
0 
Brown. 
10) 
4. 
• 6 
Gravel and Volcanic ashes. 
ii) 
9. 
6 
Hard basaltic rocks. 
63. 
10 
Of these I would draw attention to No. I., 2, for common pottery; No. 
I., 6 and 8, for fine stoneware ; No. I., 7, for firebricks. The various 
coloured clays, No. II., 2 to 9, will be applicable to every kind of pottery. 
No. II., 8, may be used as a colour or pigment in the same way as ochre 
and umber are generally used. 
