268 Proceedings of the Royal Society of Edinburgh. [Sess. 
(viz. radiolaria and sponge spicules), and mineral matter which makes up the 
remaining 35 ’83 per cent. Of this, 2 per cent, is composed of angular and 
rounded fragments of quartz and felspar with a mean diameter of 0*09 mm. 
Table of Rock Specimens from Station 95. 
5 
biO 
73 
<D 
r O 
3 2 
§ § 
p d 
CD 
r e8 
£3 
O 
. H 
-g i 
M 
3 
H 
/ 
r 
Chalk with exogyra 
l 
Cretaceous . J 
Chalk with sand grains . 
l 
Chalk- flints . 
3 
i 
-12 
? Cretaceous 
f 
Fine-grained grey limestone . 
4 
Fine-grained white marble 
2 
Limestone with encrinites 
i 
1 
15 
1 
Limestone with chert 
Limestone with Schizodus and 
2 
Carboniferous . - 
Edmondia .... 
Sandstone with encrinites 
l 
1 
-39 
Sedimentary . < 
Sandstone with Spirorbis 
Sandstone with plants . 
1 
1 
1 
? Carboniferous 
Sandstone grit, sandy shale . 
2 
1 
6 
5 
Devonian 
Purple grit and conglomerate . 
4 
4 
Greywacke .... 
4 
7 
22 
Silurian . 
i 
Shale ..... 
2 
1 
l 
Lydian stone .... 
1 
-45 
? Silurian 
j 
Dark shale .... 
Greywacke, quartz-veined 
1 
4 
1 
2 
\ 
Uncertain . j 
r 
Vein quartz .... 
Dolomitic vein stuff 
1 
1 
2 
1 
1 
} 
- 6 
j 
r 
Granite ..... 
4 
1 
2 
7 
Igneous 
Intrusive . J 
1 
Syenite ..... 
Lamprophyre 
1 
2 
1 
2 
Dolerite ..... 
17 
*1 
5 
23 
Lavaform 
Basalt ..... 
17 
1 
6 
24 
, 
Pyro-clastic . 
Yolcanic agglomerate 
1 
1 
f 
Highly . 
Gneiss ..... 
2 
3 
14 
19 
Graphitic schist 
1 
) 
Metamorphic - 
Slightly 
Slate and phyllite . 
Flaser greywacke . 
4 
3 
2 
1 
-17 
Flaser epidiorite 
2 
1 
3 
< 
Flaser felsite .... 
1 
1 
81 
14 
29 
80 
204 
Percentages 
39 71 
I 6‘ 86 
14*21 
39*21 
Ice-moulded 
14*21 
% 
The combined ice-moulded and glaciated = 
53*42 
% 
The remainder consists of amorphous clayey matter with minute mineral 
particles and fragments of siliceous organisms. 
The sounding-tube brought up from the bottom at this Station a roll 
about 9 inches in length, showing that it had pierced the deposit to a depth 
much beneath that reached by any of the stones captured by the trawl. 
