210 



From the above remarks it will be perceived that the plant 

 from near the Lakes of Mount Field offers some approach to 

 E. urnigera ; and this is borne out by specimens of evidently 

 the same tree just submitted to me by Mr. T. B. Moore, as 

 obtained by him during recent surveys across the Mount Wel- 

 lington ranges. It rises there even to the stupendous height 

 of 200 feet, half that size being still reached in the cool 

 elevations of 2,000 feet. Mr. Moore observed the bark to be 

 smooth, of a reddish or chocolate colour, but where fresh shed 

 it being mottled with yellowish streaks or blotches. The leaves 

 are ovate-lanceolar, and attain a length of four inches. 



It remains now to bo shown, in what precise position sys- 

 tematically E. vernicosa is standing to E. urnigera and to E. 

 Gunnii, after this most highly developed state of the former 

 became discovered ; but these comparisons can be carried on 

 much better by local observers in the forests themselves, than 

 by observations on necessarily limited and fragmentary material 

 in a remote study-room. But whatever exact place this tree 

 found by Mr. Moore may phytographically occupy, it will add 

 a most important one to the very few of the genus which bear 

 considerable frost ; and as the timber is pronounced by that 

 gentleman as extremely hard, close-grained, tough and heavy, 

 this hardy Eucalypt shuuld be brought speedily and extensively 

 under trial culture in cool climates — when also the characteris- 

 tics of the seedlings would, for diagnostic purposes, come under 

 observation. In conclusion I may add, that the small leaved 

 dwarf alpine state of E. vernicosa is now known also from 

 Mount Arrowsmith (Gulliver), Mount Norfolk (Emrnett), and 

 Mount Sorell (Milligan)." 



NOTES ON THE GEOLOGY OP THE KING RIVER, 

 TOGETHER WITH A BRIEF ACCOUNT OF THE 

 HISTORY OF GOLD-MINING IN AUSTRALASIA. 



By Robert M. Johnston. F.L.S. 



The Archaean and Silurian rocks of Western Tasmania 

 forma series of folds whose axes traverse the country north and 

 south. The great folds generally are anticlines, and are com- 

 posed principally of quartzite, metamorphic schists, con- 

 glomerates, etc. 



Queen Rives Group. 



The axis of one of the great north and south anticlines 

 running northward from the Gordon and immediately west 



