580 Transactions. 
The Post-Tertiary History of New Zealand. 
By J. Henperson, M.A., D.Sc., B.Sc. in Eng. (Metallurgy). 
[ Read, with the permission of the Director of the New Zealand Geological Survey, before 
the Wellington Philosophical Society, 10th October, 1923; received by Editor, 22nd 
December, 1923 ; issued separately, 28th August, 1924.] 
THROUGHOUT the geological literature of New Zealand are numerous refer- 
ences to changes in the height of the land in respect to sea-level within 
Recent and post-Tertiary times. At many points on the coast features 
definitely associated with the sea or its edge are inland and above the 
tain-ranges, while adjacent blocks were relatively depressed in trough-like 
basins. The mountains have since been much carved by ice and water, 
arme, and littoral origin he younger Pleistocene fly 
high-level terraces bordering river-valleys, and littoral deposits forming 
coastal platforms or veneering wave-cut ben The general elevatory 
been one of uplift to the present position. T 
mentioned depression and subsequent elevation form the bulk of the Recent 
deposits of New Zealand. ' : 
paper deals chiefly with the evidences of uplift and subsidence 
that have been observed in c istricts. No account is given of the 
plains and river-valleys of New Zealand, though these have been profoundly 
modified and in part created by the movements. The effects of glaciation 
diseussed, nor do the deposits of early and middle Pleistocene age 
are not 
receive more than mention. 
GENERAL CONSIDERATIONS. : 
After long-continued standstill there will be formed around any sea-girt 
land a gently-sloping submarine shelf, which consists of a wave-cut plat- 
form, of such a platform veneered with loose deposits, or of loose deposits 
