GEOLOGY OF NORTH CAROLINA. 
ili 
men of each of these. And as fish ofial and refuse are available in 
many localities along the sounds and tidal rivers, an analysis is added, 
which will furnish the means of estimating the manurial value of such 
materials. 
8 
9 
10 
11 
A 
Silica, Insoluble, 
. . 54.42 
72.70 
1.55 
14.48 
1.33 
“ Soluble, 
1.92 
Ox. of Iron and Alum.,. . , 
. . 16.45 
5.69 
0.53 
4.97 
Lime 
.. 1.18 
1.39 
4.03 
37.57 
8.67 
Magnesia, 
.. 0.07 
0.05 
2.32 
21.62 
0.67 
Potash, 
.. 118 
1.S2 
0.31 
2.S9 
1.54 
Soda, 
. . 0.79 
0.35 
0.57 
5.32 
0.66 
Phosphoric Acid, 
. . 0.25 
0.13 
0.30 
2.80 
7.78 
Sulphuric Acid, 
... 1.46 
0 33 
0.91 
8.48 
( )r"anic Matter 
Water,. 
j 20.92 
10.35 ) 
3.65 j 
89.28 
78.30 
0.00 
Oxide of Manganese, 
0.54 
trace. 
Sulphide of Iron 
. 1.09 
0.11 
Common Salt, 
. 1.63 
1.71 
0.20 
1.S7 
0.95 
No. 8 is a mud from the marshes of Newport river, a few miles above 
Beaufort, in Carteret county, previously described. This marsh, formed 
by the filling up of the old river channel, several miles wide, is continu- 
ally enlarging at the expense of the water-surface; and similar forma- 
tions, to the extent of hundreds of square miles, are accumulating in very 
many shallow bays and sounds and rivers near the sea, so that the quan- 
tity of such material is unlimited, and the analysis indicates how much 
more valuable it is for fertilizing purposes, than much of the more expen- 
sive articles in common use. 
No. 9 is the sea mud or slime, which is deposited in the shoal waters 
of Beaufort harbor and along the sounds and estuaries of the coast. It 
is a fine, dark colored salt mud, formed of the silt brought down by the 
rivers, mixed with decaying vegetable mater, (mostly seaweed and marsh 
grass,) and animal remains, — offish, mollusks and all sorts of marine organ- 
isms. This material is very abundant along shore, and continually accu- 
mulating, and widely available to the agriculture of the coast region. 
No. 10 is the ash of sea weed, such as drifts ashore, at Beaufort and 
elsewhere in immense quantities. Its value is evident from the analysis. 
In Connecticut and other States north, it is largely used by the farmers, 
and is made the basis even of a commercial fertilizer. The ash amounts 
