PREFACE. XI. 
seven volumes of the /Vvora, and is not merely useful, but 
absolutely indispensable to the student of Australian plants. 
The genus Eucalyptus is the only one in which any alteration 
of the arrangement referred to above has been made. In regard 
to this the author has generally adopted the nomenclature of 
the classical monograph, Lucalyptographia, of Baron Mueller 
(Government Printer, Melbourne, issued in ten parts, descriptive 
of one hundred species, from 1879 to 1884), and cross-references 
have been made to the Flora Australiensts. 
Because this is not a text-book of Systematic Botany, 
botanical diagnoses of all kinds have been rigorously suppressed. 
They would be simply useless padding in a book with the aim of 
the present one. 
Where possible the writer has quoted or embodied the reports 
of uninterested experts outside the colonies in regard to the adapt- 
ability of Australian raw products. Many commendations of raw 
products for specific uses have been made either hastily or 
ignorantly. It goes without saying that where such commenda- 
tions have been found by manufacturers and others to be 
undeserved, the reputation of Australian products in general has 
suffered. The man who lauds a raw product must not forget the 
responsibility he thus takes upon himself. ‘These remarks have 
impressed themselves on the author with great force in regard to 
the products of this new country. 
The author has not confined himself to the uses to which 
plants, not endemic in Australia, are alone put in that continent. 
Doubtless the knowledge of the uses to which a plant is put in 
other countries of the world may lead, in some cases, to its useful 
employment here. 
Wherever he could trace the original authors of statements, the 
author has made it a point of honour to acknowledge them. Of 
course, he is largely indebted to the works of Baron Mueller, and 
also to the readiness with which that distinguished botanist always 
assists him to disperse his difficulties. The Rev. Dr. Woolls of 
Sydney has recorded many useful facts in regard to the utilization 
of our native plants, and has also favoured the author with others. 
To Mr. F. M. Bailey, Government Botanist of Queensland, he is 
