430 NOTES ON THE MUELLER GLACIER, NEW ZEALAND, 



In 1879 Dr. von Haast published his " Report on the Geology 

 of Canterbury and Westland," in which he relates his explorations 

 in the Southern Alps, including the district under discussion 

 (1.0. p. 32). 



In 1882 the Rev. W. S. Green made the ascent of Mount 

 Cook, and has recorded his experiences in papers in the " Proc. 

 Royal Irish Academy," 2nd Series, Vol. III., Dec. 1882; in '-'Proc. 

 Royal Geographical Soc," Feb., 1884 ; in the "Alpine Journal;" 

 and in " High Alps of New Zealand." In the following year Dr. 

 R. von Lendenfeld went up the Tasman Glacier and ascended 

 Hochstetter Dome. His full account is published in Dr. A. 

 Petermann's " ]Mittheilungen aus J. Perthes' Geograph. Anstalt," 

 Erganzungsband XVI., 1883-i, No. 75 ; and a short account in 

 the "New Zealand Journal of Science," Vol. L, pp. 504 and 558. 



Messrs. Burton Brothers, of Dunedin, took photographs of the 

 Mueller and Hooker Glaciers in 1875. Mr. Coxhead, also of 

 Dunedin, photographed them in 1886 ; and Mr. Wheeler, of 

 Christchurch, in 1888. 



Last March I spent ten days at the Hermitage, and explored 

 the lower part of the Mueller Glacier. Fiuding from Mr. 

 Huddleston that several important changes have taken place 

 during the three years that he has lived there, I have thought 

 that it would be useful to record these changes, and with this 

 view I have incorporated some observations of my own with 

 them. The dimensions of the glacier are taken from Mr. Sealy's 

 map. 



Geological Structure of the District. 



The rocks forming the Sealy and Moorhouse Ranges, as well 

 as those on the southern spur of Mount Cook, are chiefly grey- 

 wackes and black slates, the former being often peneti-ated by 

 white quartz veins ; but in addition to these fragments of red or 

 chocolate-coloured slates are found occasionally among the debris on 

 the glacier. The greywackes are generally grey, but sometimes 



