A PRELIMINARY SKETCH OF THE GLACIAL 



REMAINS PRESERVED IN THE NATIONAL 



PARK OF TASMANIA. 



By a. N. Lewis, M.C. 



Plates VI.-XIV. 

 (Read 11th July, 1921.) 



INTRODUCTORY REMARKS. 



This paper is offered as a preliminary and very general 

 sketch of the di.stiict described, upon which more detailed 

 examinations of separate sections may be based. The 

 author cannot at present offer a complete geology of the 

 National Park of Tasmania. Its size, ruggedness, and gen- 

 eral inaccessibility, aided by the usually inclement weather 

 of the mountains, make the task difficult, and demand a 

 far greater expenditure of time than has been available 

 up to the present. Much of the Park is still unexplored, 

 and parts were first visited that some of the informa- 

 tion contained in this paper might be gleaned. But an 

 outline description is urgently needed, firstly as a frame 

 into which more detailed investigations may be fitted, sec- 

 ondly, for the information of visitors, who, in annually 

 Increasing numbers, spend holidays on the Park's highlands, 

 and also as an assistance to the parties who are now 

 inspecting this region in connection with water supply ques- 

 tions. 



The author also offers the information as a small con- 

 tribution to the Geology of Tasmania, information which, 

 in the absence of local text books, it is hoped will be of 

 assistance both to students and teachers. Tasmania is our 

 home. It provides us with wonderful examples of every 

 geological phenomenon. These are of living interest to us. 

 Let us rather study them, and know our own home, than seek 

 our geology from books published about distant countries 

 describing objects that are mere names to us. 



As far as can be ascertained, the glacial remains on 

 the Mt. Field ranges have never been described. They do 

 not appear to have been observed, or at least their existence 

 recorded, before the proclamation of the area as a National 

 Park. There is, therefore, no previous literature on the sub- 

 ject to which to refer. 



