752 E.C. ANDREWS 



Again, it is not known how many of the observations of the 

 older workers in connection with the strike of folds were merely 

 local and how many were conducted on a large scale. 



Acknowledgments. — The writer is deeply indebted to Pro- 

 fessor Leo A. Cotton and Dr. W. N. Benson, of Sydney University, 

 for their kindness in reading the report in manuscript and for supply- 

 ing additional information as to literature on the pre-Cambrian 

 and Ordovician, and for kindly criticism of the notes on the Devo- 

 nian, the Permo-Carboniferous and the Trias-Jura. 



Previous workers. — It is the desire of the writer at this stage of 

 our scientific development in Australia to draw attention to the 

 work of the pioneers of geology in the great island continent. 

 Australian pioneer geologists, in common with Australian explorers 

 and miners, and in common also with American pioneers, have 

 breathed the inspiration of their own mighty surroundings. Fore- 

 most among the pathfinders of geology in the country under 

 consideration — men who crossed trackless wastes and endured 

 untold discomforts in their pursuit of knowledge — were W. B. 

 Clarke, R. Daintree, and A. R. C. Selwyn; others who followed 

 in the track of these giants, but who nevertheless bore much of the 

 heat and burden of the day and were either worthy successors or 

 contemporaries of the pioneer trio, were H. Y. L. Brown, J. E. 

 Carne, T. W. E. David, W. Howchin, R. Logan Jack, A. Gibb 

 Maitland, R. Murray, S. Stutchbury, R. Tate, W. H. Twelvetrees, 

 and C. S. Wilkinson. Among them also must be named the 

 paleontologist, R. Etheridge, Jr., whose labors in the cause of 

 Australian paleontology have done so much to simplify the task 

 of the field workers. A whole group of younger enthusiasts have 

 built and are today building on the work laid down by these 

 pioneers. 



PREVIOUS WORK DONE AND SCOPE OF PRESENT NOTE 



The earliest definite statement known to the writer concerning 

 the building of Australia as a whole was made by T. W. E. David. 1 

 In this detailed account Professor David's descriptions imply 



'Presidential address on ''The Growth of Australia," Proc. Linn. Soc. N.S. 

 Wales, 1893, pp. 547-607. 



