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me with notes, photographs and adequate specimens. In the same public spirit I have been helped by 

 his successor, Mr. Stephen L. Kessell, and his botanical collector, Mr. Charles Austin Gardner, who, by the 

 judicious collection of specimens and valuable field-notes concerning Western Australian species in 

 general, has valuably supplemented the researches in tropical Western Australia of Mr. W. V. Fitzgerald, 

 and enabled one to co-ordinate the work of collectors in the Northern Territory and tropical Queensland. 

 Mr. W. C. Grasby, friend of everybody who desires to study the plants of Western Australia, has provided 

 many specimens and notes, and his name often occurs in these pages. 



In South Australia, Mr. Walter Gill, Conservator of Forests of that State, has helped me for at least 

 thirty years. In Victoria I have had some assistance from Mr. A. D. Hardy, of the Forestry Department. 

 The co-operation of Mr. R. D. Hay, Chairman of the Forestry Commission of my own State, and a fellow- 

 worker for many years, has been cordial all along. The specimens sent by each Forester have been referred 

 to under each species concerned ; the work of Mr. W. A. W. de Beuzeville has been especially note- 

 worthy. 



The Government Botanists of the various States have all been most kind in presenting and lending 

 specimens, and in supplying information. As regards Melbourne, I mention the late Mr. J. G. Luehmann 

 Professor Ewart and his successor, Mr. W. Laidlaw. In Adelaide, Mr. J. M. Black, although occupying 

 no official position, docs much public botanical work at his own expense, while Mr. L. Rodway, the honorary 

 Government Botanist of Tasmania, could not have been more helpful if he had been endowed with adequate 

 public funds. Last, but not least, let me acknowledge the great help I have received from Mr. C. T. White, 

 of Brisbane, who succeeded his grandfather, Mr. F. M. Bailey, in the office of Government Botanist. In 

 return for their kindness, I can only hope that what I have written may be of assistance to my colleagues 

 in the compilation of the Floras of their respective States. 



The sowing of seeds, and the welfare of the seedlings have necessitated the greatest care, extending 

 over a long period of years. Sometimes an individual plant has had to be kept in the same pot under 

 observation for over seven years. I am greatly indebted to Gardeners Sydney Smith, Ralph Tate, and 

 Charles Woolnough, while the general supervision of Mr. E. N. Ward, the Superintendent and now Curator 

 of the Sydney Botanic Gardens, has been much more than nominal. 



To successive Librarians of the Botanic Gardens, viz., the late Miss Amelia Maud Jenner, who died 

 on 23rd February, 1918 (Parts VI to XXXIV), Miss R. M. Breading (now Mrs. McKinnon) (Parts XXXV 

 to XLIX). and Miss M. Merrick (Part L to end), I am indebted more than I can express. These ladies 

 have helped me by hunting up references, by typing confused (sometimes very confused) manuscript, and 

 reading the proofs. To Mr. Keith E. Rogers I am indebted for the reading of proofs of some Parts, and 

 to Mr. Robert H. Anderson of others, and to the latter I am indebted for useful compilation work that I 

 have elsewhere acknowledged. 



My own daughter. Miss Acacia Dorothy Maiden, B.A.. has often rendered useful service by under- 

 taking translations into and from the Latin, to save me time. 



As a rule I have acknowledged the help I have got from my friends, when speaking of their specimens, 

 and hundreds of names will be found to be quoted in this wav. If I have omitted any names I ought to 

 have inserted. I shall be verv sorry. 



