Contents. 



CONIFERM. 



NATURAL ORDER CONIFERS 



Order of investigation ... 

 Systematic classification adopted 

 Summary of tfie results from this research 



GENERA— 



Callitris 



Historical 



Systematic ... 



The arrangement of Callitris species in order of sequence 



Comparative anatomy and phylogeny 



Foliation ' 



Phyllotaxis ... 



Histology of the leaf 



Movement of leaves 



General remarks on the leaf oils 



The cone 



The cone valves 



Origin of the spur on the valves of the cones 



Probable function of the central columella of the cone 



Angiosperms v. Gymnosperms 



Timbers 



Chemistry of the oil of timber — 



(fl) The Phenol 



(b) The occurrence of Guaiol 

 Barks... 



The tanning value of Callitris barks 

 Sandarac resins of the Callitris 



Occurrence of a manganese compound in the Callitris and other genera 

 Individual Species ; their- history, anatomy, sequence, chemistry, and economics- 



1. C. robusta, R.Br. ... 



2. C. tuberc'ulafa, R.Br. 



3. C. verrucosa, R.Br.... 



4. C. propinqua, R.Br. 



5. C. glatica, R.Br. 



6. C. arenosa, A.Cunn. 



7. C. intratropica,- Benth. et Hook. 



8. C. gracilis, R. T. Baker 

 g. C. calcarata, R.Br. 



10. C. rhomboidea, R.Br. 



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