221 



This work has been carried out as a research subject 

 tinder the David Murray Scholarship for Science, and was 

 performed under the direction of Professor Rennie, M.A., 

 I).Sc,, to whom I wish tO' acknowledge my indebtedness for 

 advice and help given. I also desire to thank Professor 

 Osborn, D.Sc, for the botanical identification of the species. 

 Owing to the prolonged nature of the work and the short 

 time available to the investigator for work at the University, 

 the main part of the research was performed in the laboratory 

 of Messrs. A. M. Bickford & Sons, Ltd., and I desire to thank 

 them for the facilities and material placed at my disposal. I 

 further wish to thank Mr. J. Hendry, Ph.C, A.I.C., for the 

 many and helpful suggestions offered throughout the work, 

 and also Mr. E. Burgess, of Kangaroo Island, who collected 

 the leaves, distilled and donated the oil used in this research. 



