192 STRATIGRAPHICAL GEOLOGY 



18 "Silurian Rocks of Britain : vol. i. Scotland," Mem. Geol. Survey. 



19 See Summaries of Progress (Geol. Survey) for 1897 and 1898. 



20 See Carruthers and Muff in Irish Naturalist, Jan. 1909. 



21 Geol. Survey, Ireland, Expl. of sheets 160, 161, and 171. 



22 Messrs. Reynolds and Gardiner, Quart. Journ. Geol. Soc. vol. Ivii. 

 p. 267. 



23 See Munthe, Geol. Foren. Stockholm Forhand., Bd. xxxii (1900). 



24 O. Schmidt, Quart. Journ. Geol. Soc. vol. xxxviii. p. 514. 



25 F. Seemann, Beitr. Palaont. Oesterr.-Ung. xx. p. 69 (1907). 



26 C. Malaise, Bull. Acad. Roy. Beige (1910). 



27 Kerforne in Bull. Soc. Sci. and Afed. Quest. (Rennes), vol. x. pp. 1-234 

 (1901). 



