426 



Transactions. — Geology. 



Guatemala Earthquake of 19th April, 1902. 

 Preliminary Tremors. 



Millie H.P. Station. 



Epicentral 

 Distance 

 along Arc 



(y). 



Epicentral 



Distance 



along Chord 



(I/ 1 ). 



Time of 



Arrival of 



Preliminary 



Tremors. " 



(Greenwich 



Mean Civil 



Time.) 





Time 

 taken in 

 Transit 



Art. XLVII. — On some Glaciated Stones from Queenstown, 



Lake Wakatipu. 



By Evelyn G. Hogg, M.A. 



[Read before the Canterbury Philosophical t Institute, 30th November, L904.] 



The glacial deposits of New Zealand present one feature in a 

 marked degree which serves to differentiate them from trie 

 similar deposits of other regions — namely, trie extensive accumu- 

 lations of morainic material with the almost entire absence of 

 boulder-clay or till. The beds of boulder-clay are widely dis- 

 tributed over the recently glaciated parts of western Europe 

 and North America. They are met with in considerable thick- 

 ness in the Dwyka conglomerate of South Africa of Permo- 

 Carboniferous age, and the glacial beds of the same age in south 

 and south-eastern Australia may be traced almost continuouslj 

 from Hallett's Cove, west of Adelaide, to Bacchus Marsh, in 

 Victoria, by the accumulations of boulder-clay nearly always 

 rich in striated stones. Boulder-clays of Permo-Carboniferous 

 age occur on the west, north-west, and south-east coasts of Tas- 

 mania. On the other hand, these glacial beds of Australia and 

 Tasmania are strikingly deficient in terminal moraines such as 

 those which constitute a marked characteristic of the New 

 Zealand beds. The nearest parallel, perhaps, to the New Zealand 

 glaciation is that of Switzerland and North Italy, but in this 



