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9. Delf, E. M. — The Meaning of Xerophily. Journ. of Ecology, iii., 

 1915, p.110. 



10. Ernst, A. — The New Flora of the Volcanic Island of Krakatau. 



Cambridge Univ. Press. Eng. Trans., 1908. 



11. Ewart, A. J. — On the Longevity of Seeds. Proc. Roy. Soc. Vict., 



xxi., 1908, p.l. 



12. Goebel, K. — Organography of Plants, Eng. Ed., 1905. 



13. Guppy, H. B. — Observations of a Naturalist in the Pacific between 



1896 and 1899., Vol. ii. (Plant Dispersal), 1906. 

 14. Studies in Seeds and Fruits, 1912. 



15. - - Plants, Seeds, and Currents in the West Indies 



and Azores, 1917. 



16. Hamilton, A. A. — The Instability of Leaf Morphology in its Rela- 



tion to Taxonomic Botany. Proc. Linn. Soc. N.S.W., xli., 1916, 

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17. — — Topographical, Ecological, and Taxonomic Notes 



on the Ocean Shoreline Vegetation of the Port Jackson District. 

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18. Hedley, C. — An Ecological Sketch of the Sydney Beaches. (Pres. 



Address). Journ. and Proc. Roy. Soc. N.S.W., xlix., 1915, p. 15. 



19. A Zoogeographic Scheme for the Mid-Pacific. Proc. 



Linn. Soc. N.S.W., xxiv., 1899, p. 391. 



20. Henslow, Rev. G. — The Origin of Plant Structures by Self-Adapta- 

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21. The Heredity of Acquired Characters in Plants, 



1908. 



22. Hill, T. G.— The Bouche d'Erquay in 1908. New Phytologist, viii., 

 1909, p. 97. 



23. Observations of the Osmotic Properties of the Root- 

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24. Hooker, Sir J. D. — The Students Flora of the British Islands. 1878. 



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26. Jensen, H. I.— Soils of New South Wales. 1914. 



27. Kearney, Junr., T. H. — The Plant Covering of Ocracoke Island; 



A Study in the Ecology of the North Carolina Strand Vegetation. 



Contrib from the U.S. National Herbarium, 1900. 

 28. Are Plants of Sea Beaches and Dunes True Halo- 



phytes. Botanical Gazette, xxxvii., 1904, p. 434. 

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Gazette, N.S.W., xvii., 1906, p.975. 



