A Jurassic Wood from Scotland. 
209 
DESCRIPTION OF PLATE III, 
Illustrating Miss Holden’s Paper on a Jurassic Wood from Scotland. 
Fig. 1. Metacedroxylon scoticum ; transverse section, showing character of 
annual ring. 
Fig. 2. Same ; tangential section, showing uniseriate and biseriate rays, 
and abundance of tyloses in the tracheides. 
Fig. 3. Same ; radial section, showing width of annual ring, and general 
character of the wood. 
Fig. 4. Same ; radial section, showing crourd uniseriate pits of the 
tracheides, tyloses and ray pitting. 
LITERATURE CITED. 
1. Bailey, I. W, “Cretaceous Pityoxylon with Marginal Tracheides.” Ann. 
of Bot., Vol. XXV, 1911. 
2. Brooks, F. T., and Sharpies, A. “ Pink Disease.” Dept, of Agric. 
Federated Malay States, Bull. No. 21, 1914. 
3. Chrysler, M. A. “ Tyloses in Tracheides of Conifers.” New Phyto- 
logist, Vol. 7, 1908, pp. 198-204, pi. 5. 
4. Conwentz, H. “ Ueber Thyllen und Thyllen ahnlichen Bildungen.” Ber. 
d. deutsch. bot. Ges. Bd. 7. 1889, pp. 34-40. 
5. Gothan, W. “Zur Anatomie lebender und fossiles Gymnospermenholzer.’ 
Abhandl. Preuss. Geol. Landesanstalt, Neue Folge 
Heft. 44, 1905. 
6 ,, “ Die Fossilen Holzreste von Spitzbergen.” Svensk. 
Vetensk. Handl., Vol. 45, No. 8. 1908. 
7. Groom, P., and Rushton, W. “ Structure of the Wood of East Indian 
Species of Pinus.” Jour. Linn. Soc. Bot., Vol. 41, 
1911, p. 457. 
8. Holden, R.~ ‘‘Anatomy of Mesozoic Conifers.” Ann. of Bot., Vol. 27, 
1913, pp. 533-545. 
9. Jeffrey, E. C. “ The Araucarioxylon Type.” Proc. Am. Acad. Arts. & Sci., 
Vol. 48, No. 13, 1912. 
10. Lignier, O. “ Vegdtaux fossiles d. Normandie, II, IV (ler Serie) ” Caen, 
1907. 
11. Miller, H. “ Testomy of the Rocks.” Edinburgh, 1857. 
12. Molisch, H. “ Zur Kentniss der Thyllen.” Sitzungsber. d. K. Akad. 
d. Wiss. Wien, Bd. 97, 1888. 
13. Raatz, Wm. “ Ueber Thyllenbildung in den Tracheiden der Coniferen- 
holzer.” Ber. d. deutsch. bot. Ges., Bd. 10, 1892, 
pp. 183-191, pi. 10. 
14. Seward, A. C. ‘‘Jurassic Flora of Sutherland.” Trans. Roy. Soc. 
Edinb., Vol. 47, 1911. 
15. Seward, A. C., and Bancroft, N. “Jurassic Plants from Cromarty and 
Sutherland, Scotland.” Trans. Roy. Soc. Edinb., 
Vol. 48, 1913. 
16. Sinnott, E. W. “ Paracedroxylon, a new Type of Araucarian Wood.” 
Rhodora, Vol. 11, 1909, pp. 165-173, pis. 80, 81. 
17. Stopes, M. C. “ Flora of the Inferior Oolite of Brora.” Quart. Jour. 
Geol. Soc., Vol. 63, 1907, pp. 375-382. 
18. Thompson, W. P. “ Anatomy and Relationships of the Gnetales. I. 
The Genus Ephedra ” Ann. of Bot., Vol. 26, 1912. 
19. Thomson, R. B. “ Comparative Anatomy and Affinities of the 
Araucariete.” Phil. Trans. Roy. Soc. Lond., B., 
Vol. 204, 1914. 
