BIBLIOGRAPHY 95 



NATHORST, A. G. (1915). Zur Devonflora des westlichen Norwegens. 



Bergens Mus. Aarbok, 1914-5, No-. 9. 1915. 

 NKWBERRY, J. S. (1889). Devonian Plants from Ohio. Journ. Cincinnati 



Soc. Nat. Hist. Vol. xn. p. 48. 1889. 

 NICHOLSON, H. A. (1869). On the Occurrence of Plants in the Skiddaw 



Slates. Geol. Mag. Dec. 1, Vol. vi. p. 494. 1869. 

 NICHOLSON, H. A. and LYDEKKER, R. (1889). Manual of Palaeontology. 



Edit. 3, Vol. 2. 1889. 

 PENHALLOW, D. P. (1892). Additional Notes on Devonian Plants from 



Scotland. Canadian Rec. Sci. Vol. 5, No. 1, pp. 1-13, 2 pis. 1892. 

 POTONIE, H. (1895). Die Beziehung zwischen dem echt-gabeligen und dem 



fiederigen Wedel-Aufbau der Fame. Ber. Deutsch. Botan. Gesell. 



Vol. xm. p. 244. 1895. 

 (1898). Die Metamorphose der Pflanzen im Lichte palaeontologischer 



Thatsachen. Berlin. 1898. 



(1901). Die Silur- und die Culm-Flora des Harzes und des Magde- 

 burgischen. Abhandl. k. Preuss. Geol. Landesanstalt, N.F. Heft 36. 

 1901. 



- (1902 1 ). Die Pericaulom-Theorie. Ber. Deutsch. Botan. Gesell. Vol. 

 20, p. 502. 1902. 



(1902 2 ). Ein Blick im die Geschichte der botanischen Morphologic mit 

 besonderer Riicksicht auf die Pericaulom-Theorie. Naturwiss. Wochen- 

 schrift, Vol. n. (N.S.), Nos. 1-3. 1902. 



POTONIE, H. and BERNARD, C. (1904). Flore Devonienne de 1'etage H de 



Barrande. Leipzig, 1904. (Syst. Silur. du Centre de la Boheme, by 



J. Barrande.) 

 PROSSER, C. S. (1894). The Devonian System of Eastern Pennsylvania and 



New York. Bull. No. 120, U.S. Geol. Survey. 1894. 

 REID, J., GRAHAM, W. and MACNAIR, P. (1897). Parka decipiens, its Origin, 



Affinities and Distribution. Trans. Geol. Soc. Glasgow, Vol. xi. Pt 1, 



p. 105. 1897. 

 REID, J. and MACNAIR, P. (1896). On the Genera Lycopodites and Psilo- 



phyton of the Old Red Sandstone Formation of Scotland. Trans. Geol. 



Soc. Glasgow, Vol. x. Pt 2, p. 323. 1896. 



- (1899). On the genera Psilophyton. Lycopodites, Zosterophyllum and 

 Parka decipiens of the Old Red Sandstone of Scotland. Their Affinities 

 and Distribution. Trans. Edinb. Geol. Soc. Vol. vn. p. 368. 1899 (for 

 1893-1898). 



SALTER, J. W. (1858). On some Remains of Terrestrial Plants in the Old 



Red Sandstone of Caithness. Quart. Journ. Geol. Soc. Vol. 14, p. 72. 



1858. 

 SALTER, J. W. in MURCHISON, R. I. (1859). On the Succession of the Older 



Rocks in the Northernmost Counties of Scotland, etc. Quart. Journ. 



Geol. Soc. Vol. 15, p. 407. 1859. 

 SCHMALHAUSEN, J. (1894). Ueber Devonische Pflanzen aus dem Donetz- 



Becken. Mem. Com. Geol. St-Petersbourg, Vol. vm. No. 3, 36 pp. 



and 2 pis. 1894. 

 SCOTT, D. H. (1909). Studies in Fossil Botany. Edit. 2, Vol. n. London. 



1909. 



