1. Amos, G. L., I. J. W. Bisset andH. E. Dadswell. 1950. Wood structure in relation to growth inEucalyptus gigantea Hook F. Aust Jour. Sci. Res.3B: 393–413.
2. Anderson, Eric A. 1951. Tracheid length variation in conifers as related to distance from pith. Jour. For.49: 38–42.
3. Australia Division of Forest Products. 1949. Cell wall and fibre studies. Growth studies. Sapwood and heartwood. Rep. Div. For. Prod. Aust.1948-1949: 6–10. [Not seen. Abstracted in For. Abs. 11: 1852.]
4. Bailey, I. W., andH. B. Shepard. 1915. Sanio’s laws for the variation in size of coniferous tracheids. Bot. Gaz.60: 66–71.
5. — andW. W. Tupper. 1919. Size variation in tracheary cells. Proc. Am. Acad. Arts & Sci.54: 149–204.