75 



able, the best section of the country can be seen. Here an 

 outcrop of the bed rock for the first and only time in the 

 " till" is observed, a blue slate lying at an angle of 80 degs., 

 slightly distorted, but similar in character to the binding 

 material of the glacial conglomerate. At this point we find an 

 illustration of a " giant's kettle," a wide crevasse in the rock 

 filled with " till," the outer wall being at the termination of 

 the deposit. The excavation of the cutting is not sufficiently 

 deep to show the whole depth of the filled-up crevasse, nor to 

 allow me to give an estimate of the probable depth of the 

 whole formation. 



During former explorations of the country I found the 

 deposit two miles further distant, in a north-east direction on 

 Gould's old track of nearly forty years ago, re-opened in 18S3 

 by the Meredith Brothers. Taking this and other enumerated 

 facts into consideration, I arrive at the conclusion that the 

 tend of the glaciers have been from the north-east, possibly 

 from the highlands of Tyndall and Sedgwick, which are in that 

 direction, and that the deposit is a moraine profonde, and if 

 not precisely similar to the boulder " till " of the more ancient 

 glacial epochs of other countries, it is the till of a more 

 recent glacial period in ours. The moraines on the edge of 

 Kelly's Basin, spoken of in a previous paper, are similar in 

 character to the one just described, with the exception that as 

 far as I have observed the pebbles are all embedded in a yellow 

 clay. 



The recent conglomerate or till on the Strahan-Lyell road is 

 at an altitude of 150ft. to 200ft. above sea level. It is in no 

 way identical with the ancient permo-carboniferous glacial 

 conglomerate found by Mr. Dunn near Mount Eead, nor with 

 tho^e referred to in my former paper on West Coast Glacia- 

 tion as occurring at Mount Sedgwick and near Zeehan. The 

 recent find is composed of rocks belonging to the district, 

 principally slates, dioride, conglomerate, and quartzite, which 

 are embedded in a matrix derived from the wearing down and 

 grinding action of the ice over the local slate rocks, the general 

 formation found in the lower lands of this territory. 



The ancient conglomerate contains not only pebbles but 

 large sized boulders quite foreign to the country ; it is more 

 consolidated, also of a much harder character, and the binding 

 material is of a gritty sedimentary nature, showing that the 

 deposits were formed under water and have a different age and 

 origin. 



After the discovery of the Kelly's Basin moraines and the 

 huge ice-marked boulders in the vicinity of Farm Cove, I was, 

 convinced that our glaciers had in some instances descended to 

 sea level, and since the finding of further proofs in the low- 

 levels at a considerable distance (18 to 40 miles) from the 



