12 SCIENCE PROGRESS. 



(5) Bertrand, M. Etudes dans les Alpes Francaises. Bull. 



Geol. France, ser. 3, vol. xxii., p. 69. 



(6) Ternier, P. Le massif des Grand-Rousses (Dauphine et 



Savoie). Bull. Serv. Carte Geol. France, No. 40. 1894. 



(7) BELL, R. Pre-Palseozoic Decay of Crystalline Rocks North 



of Lake Huron. Bull. Geol. Soc, Amer., vol. v., p. 357. 

 Rochester, N.Y. 



(8) Wiman, C. Paleontologische Notizen : I. Ein prakambrisches 



Fossil ; II. Conularia loculata n. sp. Bull. Geol. Inst. Univ. 

 Upsala, vol. ii., pt. 1, No. 3, p. 109. 



(9) NOETLING, F. On the Cambrian Formation of the Eastern 



Salt Range. Records Geol. Surv., India, vol. xxvii., p. 71. 



(10) HULL, E. The Discovery of a Concealed Ridge of supposed 



Cambrian Rocks under the New Red Sandstone of Nether- 

 seal, near Ashby-de-la-Zouch. Trans. Fed. Inst. M. E., 

 vol. viii., p. 90. 



(11) Hicks, H. On some Life Zones in the Lower Palaeozoic 



Rocks of the British Areas, as defined mainly by researches 

 during the past thirty years. Geo. Mag., Dec, 4, vol. i., pp. 

 368, 399 and 441. 



(12) Pocta, P. Systeme Silurien du Centre de la Boheme (J. 



Barrande), vol. viii., tome 1. Bryozoaires, etc. Prague, 1894. 



(13) Schmidt, F. Revision der ostbaltischen silurischen Trilobiten. 



Abth. iv. Mem. Acad. Imp. Sci., vol. xlii., No. 5. St. 

 Petersburg. 



(14) Hall, T. S. Rep. Aust. Assoc. Adv. Sci., 1893, vol. v., p. 374. 



1894. 



John E. Marr. 



