1082 DB H. KIDSTON, MR T. C. CANTR1LL, AND MR E. E. L. DIXON. 



and, as already mentioned, there is the possibility that the absence of Westphalian 

 species from this part of the bore may be accidental ; still, from some cause they 

 are absent. 



1 have again to express my thanks to the Executive Committee of the Carnegie 

 Trust for a grant to defray the cost of the plates illustrating this Memoir. 



EXPLANATION OF PLATES. 

 Plate I. 



Fig. 1. Cingularia typica Weiss. 



Locality — Highley Colliery, Highley, Shropshire. Horizon — Shales associated with Brooch 

 Coal. Natural size. (Pr. 1350.) 

 Fig. la. Cingularia typica Weiss. 



Specimen shown at fig. 1, enlarged 2 times, a, remains of sterile whorls. 

 Fig. lb. Cingularia typica Weiss. 



Cone axis x 2, to show that the ribs do not alternate at the nodes a, a. 

 Fig. 2. Cingularia typica Weiss. 



Fertile whorl. Same locality and horizon as last. Natural size. (Pr. 1261.) 

 Fig. 2a. Cingularia typica Weiss. 



Same specimen enlarged 2 times. 

 Fig. 3. Cingularia Cantrilli Kidston n. sp. 



Small fragment showing the upper surface of the sphorophylls. Locality — Highley Colliery, 

 Highley, Shropshire. Horizon — Shales associated with Brooch Coal. Natural size. 

 (Pr. 1260.) (The figure is placed on the plate in inverted position.) 

 Fig. 3a. Cingularia Cantrilli Kidston n. sp. 



Specimen shown at fig. 3, enlarged 2 times, a and a, the two free truncate lappets of the 

 sporophyll ; b, the united bases of the sporophylls forming a collar which surrounds the 

 axis ; c and c, small circular points indicating the position of the outer circle of sporangia 

 on lower side of sporophyll ; c and c, position of inner whorl of sporangia. 

 Fig. 4. Cingularia Cantrilli Kidston n. sp. 



Same locality and horizon as last. Specimen showing lower surface of sporophylls. Natural 

 size. a, axis ; b, united portion of sporophylls forming collar round axis ; s s, sporophylls. 

 (Pr. 1256 and Pr. 1257.) 

 Fig. 4a. Cingularia Cantrilli Kidston n. sp. 



Portion of specimen shown at fig. 4, enlarged 2 times. Lettering as in fig. 4. 

 Fig. 5. Cingularia Cantrilli Kidston n. sp. 



Counterpart of tig. 4. Natural size. (Pr. 1258 and Pr. 1259.) 

 Fig. 5a. Cingularia Cantrilli Kidston n. sp. 



Portion of specimen shown at fig. 5, enlarged 2 times, a, ribbed axis ; b, united portion of 

 sporophylls forming a collar which surrounds the axis ; c', one of the two lappets forming 

 the free portion of the sporophyll ; a", d", small circular scars indicating the position of 

 the outer circle of sporangia ; e', e", scars of inner circle of sporangia ; /, knee formed 

 by upward bending of the sporophylls; g, limit of the free portion of the lappets of 

 sporophyll. 



Plate II. 

 Fig. 1. Sigillaria reticulata Lesqx. 



Locality — Roadside near Furnace Mill, | mile N.W. of Wyre Poorest Station, near Cleobury 

 Mortimer. Horizon — Westphalian Series. Small fragment of cortex. Natural size. (Pr. 1416.) 



