264 Messrs. Parker and Jones on 



III. " Remarks on the green sand of the Zeuqlodon-\\\ne?,io\iQ, 

 of Alabama" (read February 1855), pp. 112-il6. IV. ''New 

 advance of knowledge of the green sand, and on the abmidant 

 brown-red and coral-red stone casts of the Polythalamian 

 Chalk of North America" (read March 1855), pp. 116-129. 

 V. " Further recognition of the higher organization of the Poly- 

 thalamia by means of their ancient stone casts" (read May 

 1855), pp. 130-145. VI. " The successful exposition of perfect 

 stone casts of Nummulites, with abundant organic structure", 

 (read July 1855), pp. 146-148. VII. " The successful trans- 

 parent colouring of colourless organic siliceous bodies for micro- 

 scopical purposes " (read July 1855), pp. 148-157. The expla- 

 nation of plates, pp. 158-176. 



Plate I. iigs. i.-iii. represent chlorite &c. 



Fig. IV. A group of green siliceous casts and portions of casts 

 from the Nummulitic Limestone of the Traunstein. They are 

 numbered (1-11) in the text, p. 159, and lettered {a-l) in the 

 plate and its explanation, p. 160 : fig. a (" Rotalia") probably 

 belongs to an OjjercuUna] fig. _^ (" Rotalia") may be part of 

 the cast of a simple Alveolina. The others are very uncertain. 

 Fig. V. (j). 160), Nodosaria, Zeuglodon-limestone, Alabama. 

 Fig. VI., Nodosaria monile (Glauconitic Limestone, Montfort), 

 =N. pyrula^ D'Orb. VII. & VIII., Nodosaria javanica (Gua 

 Linggo-manik, Java), has parallel grooves in each segment, 

 and is a Bigenerina that had a set of internal ribs on the 

 chamber-wall (incipient labyrinthic structure) : see also a grooved 

 cast in Textilaria trilohata^ pi. IV. figs. XV., XVI. Fig. ix. 

 Vaghudma^ Zeuglodon-\miQ,^to\i&. Fig. x. Vaginidlna suhu- 

 lata, Glauc. Limestone, Montfort. 



PI. II. fig. I. (p. 161), Textilaria glohidosa, Num. Liniest. 

 Traunstein. Fig. II., Orammostomum attenuatum^ and fig. III., 

 Gr. angidatum (Num. Limest. Montfort), are Textilaria sagit- 

 tula. Fig. IV., Text, euryconus? [Zeugl.A.) , is Text, agglutinans. 

 Fig. v., Grammostomum {Zeugl.A.), is Text, sagittula. Fig. VI., 

 Oncohotrys huccinum {Zeugl.-\.),is the cast of probably a Poly- 

 morphina^ possibly of a Bulimina. Fig. VII., Rotalia umbilicata 

 (Glauc. L. Montfort), is a young nautiloid form possibly Ro- 

 taline, probably Operculine. Fig. viii. (p. 162), Mesopora 

 cliloris (Traunstein), is an Operculina., and not the same as is 

 figured in the ' Mikrogeologie,' which is a Haploijhragmium 

 [Lituola). Fig. IX., Planidina micromiyhala [Zeugl.-].) , is 

 Rotalia Beccarii. Fig. X., Phanerostomum'? ^ and fig. XL, Pla- 

 nulina polysolenia (Zeugl.-l.), are Planorhidina vulgaris. Fig. 

 XII., Cristellaria eurythalama [Zeugl.A.]^ is a Lituola [Haplo- 

 phragmium) . Fig. XIII. (p. 163), Glohigerina crassa {Zeugl.-\.) y 



