BIBLIOGRAPHY 93 



ELKINS, M. G. and WIELAND, G. R. (1914). Cordaitean Wood from the 



Indiana Black Shale. Amer. Journ. Sci. Vol. 38, p. 65. 1914. 

 FLEMING, J. (1831). On the occurrence of the Scales of Vertebra ted Animals 



in the Old Red Sandstone of Fifeshire. Cheek's Edinburgh Journ. Nat. 



and Geogr. Sci., N.S. Vol. m. p. 86. 1831. 

 FRECH, F. (1897). Lethaea geognostica. Theil i. Lethaea Palaeozoica. 



Vol. n. 1897-1902. 

 FRITSCH, F. E. (1916). The Algal Ancestry of the Higher Plants. New 



Phytol. Vol. xv. p. 233. 1916. 

 GILKINET, A. (1875 1 ). Sur quelques plantes fossiles de 1'etage des psammites 



du Condroz. Bull. Acad. R. Belgique, Ser. 2, Vol. 39, p. 384. 1875. 



- (1875 2 ). Sur quelques plantes fossiles de 1'etage du Poudingue de 

 Burnot (devonien inferieur). Bull. Acad. R. Belgique, Ser. 2, Vol. 40, 

 p. 139. 1875. 



HALLE, T. G. (1916). Lower Devonian Plants from Roragen in Norway. 



Handl. k. Svenska Vetenskaps-Akad. Vol. 57, No. 1.. 1916. 

 HICKLING, G. (1908). The Old Red Sandstone of Forfarshire, Upper and 



Lower. Geol. Mag. Dec. 5, Vol. v. p. 396. 1908. 



- (1912 1 ). The Old Red Sandstone Rocks near Arbroath. Proc. Geol. 

 Assoc. Vol. 23, p. 299. 19J2. 



- (1912 2 ). On the Geology and Palaeontology of Forfarshire. Proc. 

 Geol. Assoc. Vol. xxm. p. 302. 1912. 



HINXMAN, L. W. and GRANT WILSON, J. S. (1902). The Geology of Lower 



Strathspey. Mem. Geol. Surv. Scotland. 1902. 

 HORNE, J. and HINXMAN, L. W. (1914). The Geology of the Country round 



Beauly and Inverness. Mem. Geol. Surv. Scotland, No. 83. 1914. 

 HORNE, J. and MACKIE, W. (1917). The Plant-bearing Cherts at Rhynie, 



Aberdeenshire. Report of the Committee. Rep. Brit. Assoc. Newcastle- 



on-Tyne, 1916, p. 206. 1917. 

 JAHN, J. J. (1903). Ueber die Etage H im mittel-bohmischen Devon. 



Verhandl. K. K. Geol. Reichsanstalt, Jahrg. 1903, p. 73. 1903. 

 JANCHEN, E. (1911). Neuere Vorstellungen iiber die Phylogenie der 



Pteridophyton. Mitt, des Naturwiss. Ver. Univ. Wien, Jahrg. ix. p. 33. 



1911. 

 JOHNSON, T. (1911 1 ). Is Archaeopteris a Pteridosperm ? Sci. Proc. R. 



Dublin Soc. Vol. xra. (N.S.), No. 8, p. 114. 1911. 



(1911 2 ). The Occurrence of Archaeopteris Tschermaki, Stur, and of 

 other species of Archaeopteris in Ireland. Sci. Proc. R. Dublin Soc. 

 Vol. xin. (N.S.), No. 9, p. 137. 1911. 



(1913). On Bothrodendron (Cyclostigma) Kiltorkense, Haughton, sp. 

 Sci. Proc. R. Dublin Soc. Vol. xm. (N.S.), No. 34, p. 500. 1913. 



KIDSTON, R. ( 1885) . On the Occurrence of Lycopodites (Sigillaria) Vanuxemi, 

 Goppert, in Britain with remarks on its Affinities. Journ. Linn. Soc. 

 Bot. Vol. 21, p. 560. 1885. 



- (1888). On the Fructification and Affinities of Archaeopteris hibernica, 

 Forbes, sp. Ann. Mag. Nat. Hist. Ser. 6, Vol. i. p. 412. 1888. 



(1893). On the Occurrence of Arthrostigma gracile, Dawson, in the 

 Lower Old Red Sandstone of Perthshire. Proc. R. Phys. Soc. 

 Edinburgh, Vol. xn. p. 102. 1894 (for 1893.) 



