Barber, —On Nematophycits Storriei , nov, sp, 335 
the present case it is a marked and striking character. As 
will be seen in the transverse, and more especially in the 
longitudinal sections figured (Figs. 9 and 10), there is a perfect 
network of tissue in some of the spaces. 
But branching occurs elsewhere. It is not confined to the 
spaces, but may be met with in the ordinary tissues far from 
any space, as will be seen from Fig. 11. It is, however, rare 
in such positions. In passing, it is certainly worthy of note 
that, although the branching is so excessive in these spaces, yet 
the small-tube net- work of N. Logcini is absent in the present 
species, although the structural details are well preserved. 
Therefore, Professor Penhallow’s suggestion, that the spaces are 
functionally regions of union between the larger and smaller 
tubes, must be regarded with caution. One of the peculiarities 
of the slides of Nematophycus Storriei , not noticeable in Sir 
William Dawson’s slides, is the presence of numerous fila- 
mentous bodies, of short length and great tenuity, appearing 
to have their origin in the walls of the larger tubes (Figs, iz 
and 1 3). The presence of these bodies is always accompanied 
by an apparent disintegration of the tubes. Occasionally they 
form a network, and forcibly call to mind the hyphae of a 
minute fungus parasitic on the walls of the tissue. The 
resemblance is emphasized by the presence of spherical punc- 
tate bodies, much resembling masses of spores (Fig. 14), which 
occur in the cavities of the tubes. Occasionally a tube is seen 
to arise from such a mass (Figs. 7 and 14). The appearances 
alluded to seem to be sufficiently striking to be figured, 
although my present feeling is against their plant-nature. It 
seems possible that they may belong to some such mineral 
form as the ‘ trichites ’ seen in certain rock-sections. I have 
not, however, met with them in the sections of Pachytheca , 
although the lithological character of the two fossils may be 
considered identical. 
As already remarked, no single case has come to my know- 
ledge of the connection of the larger with the smaller tubes in 
N ematophycus Logani. The nearest approach to such a union 
