1036 
THE VOYAGE OF H.M.S. CHALLENGEE. 
II. The Fossil Bone. 
No. 13. Portion of Ziphius Beak from Red Crag, Suffolk. 
A thin plate cut out of the beak, highly polished on one side. The specimen w 
wholly petrified and homogeneous. It was completely soluble in hydrochloric acid. 
A complete analysis gave the following results : — • 
Moisture, 
Combined water (H 2 0), 
Phosphoric acid (P 2 0 5 ), 
Carbonic acid (C0 2 ), 
Fluorine 1 - 50 = (F 2 - 0), 
Sulphuric acid (S0 3 ), 
Chlorine and silica, 
Lime (CaO), 
Magnesia (MgO), . 
Ferric oxide (Fe 2 0 3 ), 
Alumina (A1 2 0 3 ), 
Potash (K 9 0), 
IjBoda (Na 2 0), 
Ratio of equivalents — 
(iP 2 0 6 ) (C0 2 ) 
1 0-239 
In recent Ziphius bone, No. 11, they were — 
1 : 0-197 
p. 
P. 
E. 
1-67 
2-31 
0-2566 
33-83 
1-4294 
7-50 
0-3409 
0-87 
0-0789 
0-62 
0-0155 
nil. 
48-81 
1-7431 
1-08 
0-0540 
2-00 
0-0577 
0-18 
0-0105 
0-52 
00111 
1-97 
0-0635 
101-36 
(F 2 ) 
0-055 
nil. 
1-8647 
1-9399 
III. The Deep-Sea Bones. 
No. 1 . Portion of a large piece of Whale’s Bone. 
Station 286 ; 2335 fathoms, South Pacific. 
The specimen was brown in colour, very porous, and readily reducible 
to a powder. 
Moisture, ..... 
Combined water (H 2 0), .... 
Phosphoric acid (P 2 0 5 ), .... 
Carbonic acid (C0 2 ), .... 
Fluorine 0-71 = (F 2 - O), 
Lime (CaO), ..... 
Magnesia (MgO), . . . 
Ferrous oxide (FeO),* .... 
Ferric oxide (Fe 2 0 3 ),* .... 
Binoxide of manganese (Mn0 2 ),* 
Alumina (A1 2 0 3 ), .... 
Silica and substances insoluble in hydrochloric acid, 
Alkalies and loss, .... 
P. 
P. 
E. 
3-06 
3-66 
27-49 
1-162 
4-14 
0-188 
0-41 
0-037 
39-00 
1-392 
2-01 
1-04 
4-83 
1-61 
2-70 
9-08 
0-97 
* Direct result of analysis — 
Manganous oxide (MnO), 
Ferric oxide (Fe 2 0 3 ), 
Loose oxygen (O), 
100-00 
1-31 
5-98 
0-18 
