28 



SPRINGS AND THEIR ORIGIN. 



Have New Zealand and Australia, or at least its eastern ranges, 

 ever been parts of the same land, with a fauna like that of New 

 Zealand ? Geology is as yet far from favouring the supposition, 

 which moreover would compel us to assign to the moas an 

 enormous duration. We must await more light. Meanwhile it 

 is not without interest that we see so distinct a breach open in the 

 wall of exclusiveness surrounding the New Zealand fauna. 



TUESDAY, 11th MARCH, 1884. 



THE VICE-PRESIDENT, J. BANCROFT, M.D., IN THE CHAIR. 



DONATIONS. 



" Transactions and Proceedings of the Royal Society of South 

 Australia," vol. vi., Adelaide, 1883. From the Society, 



" Journal and Proceedings of the Royal Society of New South 

 Wales,"vols. xiv., xv., xvi., Sydney, 1881-1883. From the Society. 



The following papers were read : — 



WATER SUPPLY: SPRINGS AND THEIR ORIGIN. 



By JOHN FALCONER, O.E. 



(Plates V. to X.) 



Class I. — Natural Springs caused by the inclination and dislo- 

 cation of the Strata. 

 Springs of this class exist in the Cape Colony, on the inner slopes 

 of the Main Range (plate V.fig. i) which is situated about the same 

 distance from the sea as the Coast Ranges in this Colony. In 

 the Cape of Good Hope the sedimentary rocks dip from the 

 high table land in the interior of the Continent towards the Coast 

 Range, and about one hundred miles from the top of this Range 

 the formation commences to rise again, thereby damming the 

 water back into the strata. Part of this water finds its way to 

 the surface through dislocations at the change of inclination, 



