PLATE III. 
1. A section taken from Syringosphceria monticularia, Duncan^ the specimen being- figured 
on Plate I in figure 7. The section is radial^ and the top represents a small monticule 
at the surface j the lower part is towards the centre of the body. Many tubes are 
seen reaching to the surface and opening, some on the faintly rounded monticule, and 
others in the depressed part. The tubes in the centre of the section are essentially part 
of a radial congeries. At the sides there is tube reticulation and some of the endings 
of these tubes are seen at the surface. Swellings of the tubes are seen in some places. 
Magnified, half-inch object glass. 
2. The surface of a specimen of Syringosyohceria monticularia magnified, showing on the 
right a small pore with one large tube opening and two smaller. The dark, straight, 
bent, and branching dark lines elsewhere are the calcite intertubular infiltration, and the 
white or shaded spaces between them are tubes, some running, as on the left, a short 
course and opening on the surface, others bounding the pore, and some only showing 
geniculate portions of their track. 
3. The top and sides of a small monticule of the same specimen, less highly magnified. 
There are tube openings of the radial series in the centre, and portions of tubes, partly 
of the radial and partly of the interradial series, covering the sides of the monticule, 
and opening externally around the top. 
4. An oblique section near the centre of a specimen of Syringosphceria monticularia magnified. 
In the centre is what may be called a parent tube which gives off others that in turn 
bifurcate and radiate. Those on the sides of the section are becoming- interradial 
reticulations, and are here and there irregularly swollen. Many small tubes cut across 
are seen disconnected. The central tubes are Wo radial sets, and the bifurcating is 
very characteristic. 
5. A tangential section of one of the granules of Sioliezharia granulata magnified. The 
small radial tubes open in the midst directly, and the large interradial tubes, most 
irregular in their outline of section, are, some of them, provided with neck-like pro¬ 
longations. These are connected with the small radial series. 
G. A longitudinal section of the same specimen and through a granule. In the centre are 
a few inosculating and bifurcating small tubes, and three of them open at the surface 
on the top of a granule, being equivalent to the central openings in figure 5. On either 
side are large interradial tubes, two uniting with the radial series by small short neck¬ 
like tubes. Magnified under quarter-inch object glass. 
7, The surface of a rugged part of the same StoliczTcaria slightly magnified. The granules 
show tube openings on them and some large tube reticulation, the dark lines being 
intertubular weathering. 
8, A longitudinal or radial section of Syringosphceria monticularia magnified. The depression 
is a pore, and the relation of some tubes to it is shown. Other tubes are opening out 
at the surface close by. 
9, A radial section of the same specimen showing an interradial tube reticulation opening 
at the surface and running over it, forming there a tubular series. Elsewhere the 
irregular size of the tubes is shown and their general reticulation. 
