464 



A Research on the Eucalypts of South Australia 



AND THEIR ESSENTIAL OILS. 



By R. T. Baker, F.L.S., and H. G. Smith, F.C.S., 

 Technological Museum, Sydney, New South Wales. 



(Communicated by Prof. E. H. Rennie, M.A., D.Sc, Lond.) 

 [Read October 12, 1916.] 



Plates XLIX. to LTI. 



Contents. 



Page. 



1. Acknowledgments ... ... ... ... ... 464 



2. Introduction — 



(a) Botanical ... ... ... ... ... 465 



(b) Chemical 466 



3. General Grouping of South Australian Species ... 468 



4. Species, Avith their Systematic, Technological, and 



Chemical Data 468 



o. Tabulated Results obtained with Crude Oils ... 493 



6. Botanical Survey of Species ... ... ... ... 496 



7. Census of Species ... ... ... ..." ... 497 



1.— ACKNOWLEDGMENTS. 



We have to acknowledge our indebtedness to Mr. 

 Walter Gill, F.L.S., the Conservator of Forests of South 

 Australia, for kindly furnishing material for distil- 

 lation of several of the species, and to Mr. E. Burgess, of 

 Kangaroo Island, who at considerable personal effort for- 

 warded material for distillation of the Kangaroo Island 

 species. 



We have also to tender our thanks to the Education 

 Department of South Australia for kindly granting permission 

 to circularize the teachers under its jurisdiction, asking them 

 to aid in the preparation of this paper. We received 

 material and general information from this source, and wish 

 to express our thanks to those correspondents whose indi- 

 vidual names are given at the end of this paper. The list of 

 localities from which the material was collected is also given. 



