PROCEEDINGS OF SECTION C. 465 



and how great are tlie issues involved. For an ultimate solution 

 of the question the geologist must avail himself of the researches of 

 the meteorologist, of the astronomer, the physicist, the chemist, and 

 the biologist. Meanwhile, it is the duty of geological workers in the 

 Australasian region, so exceptionally rich in evidences of past glacial 

 action, to co-operate with one another in a broad and friendly scientific 

 spirit in gathering in more evidence. 



The author would suggest, in furthering this work in the immediate 

 future, that special attention be paid to the following points : — 



(1) The recording, as soon as possible, of any e\ddence of a perish- 



able nature, such as that afforded by erratics. 



(2) The examination of all cores from borings, especially artesian 



borings, which may penetrate the Permo-Carboniferous 

 glacial beds beneath the porous Triassic beds. 



(3) The careful study of the ground-mass of the till as well as of 



its contained boulders in relation to the charactei of the 

 subjacent and other neighboring rocks. 



(4) The comparison of the rocks forming the pebbles of the con- 



glomerate beds interstratified with the till with those of the 

 glacial boulders in the till. 



(5) The search for esker gravels, giant's kettles, &c., in the Permo- 



Carboniferous till. 



(6) The search for striated pavements, not only in the old floors 



under the till, but also in the till itself. Obviously, such 

 can only be found where the present land surface corresponds 

 mth an old glaciated surface of till, as in the sea beach at 

 Wynyard in Tasmania. 



Many other questions may suggest themselves to the geologists 

 of Australasia, and the author will be gxateful for further suggestions. 



In conclusion he desires to warmly thank colleagues, especially of 

 the Glacial Research Committees for their long-sustained and loyal 

 support in the past, and trusts that he may count upon them for a no 

 less hearty co-operation in the future. 



16.— THE DISTEIBUTION OF THINNFELDIA IN AUS- 

 TRALIAN MESOZOIC ROCKS. 



By W. S. DUN {Geological Survey of New South Wales). 



17.— REMARKS ON THE GEOLOGY OF THE UPPER WAITAKI 

 BASIN, WITH SPECIAL REFERENCE TO THE LOWER 

 TASMAN GLACIER VALLEY, NEW ZEALAND. 



By E. 0. TEIELE and A. E. KITSON, F.6.S. 

 g2 



