BY E. F. PITTxMAN AND T. AV. E. DAVID. 123 



Mr. Etheridge, at the conclusion of his able article on Lepido- 

 dendron australe, states that at Mt. Lambie there appears to be an 

 insensible gradation, so far as our present knowledge shows, from 

 beds of Upper Devonian Age into those of Lower Carboniferous, as 

 in Victoria. His conclusions, if summarised, amount to this — that 

 Lepidodendron australe is undoubtedly of Carboniferous Age in 

 some parts of Queensland and New South Wales. In Victoria it 

 is probably Lower Carboniferous in the Avon Kiver Sandstones, 

 and at Mt. Lambie in New South Wales and Mt. Wyatt in 

 Queensland, probably Carboniferous, possibly Devonian, but of 

 the latter Age at the time when he wrote there was no absolute 

 proof. 



Mr. Clunies Ross, B.Sc, of Bathurst, in a paper read before the 

 Hobart Meeting of the Australasian Association for the Advance- 

 ment of Science, summarising our knowledge of Lepidodendron 

 in New South Wales^ stated that L. Volkmannianum and L. 

 Veltheimianuni were probably of Carboniferous Age in Eastern 

 Australia, but that, while admitting that L. australe was, at some 

 of the localities where it was known to occur, of Carboniferous 

 Age, he considered that, in the neighbourhood of Bathurst, at any 

 rate, it was probably Devonian. This latter conclusion was based 

 on the evidence collected by himself at a locality 16 miles from 

 Bathurst, where he had discovered a drift piece of Lepidodendron 

 under circumstances which led him to the conclusion that it had 

 probably been derived from a geological horizon below that of the 

 marine Devonian brachiopoda of that locality. 



With a view of trying to set at rest the important question 

 as to whether Lepidodendron descends into true Devonian 

 rocks in Australia, the authors recently spent four days in 

 exploring the country in the neighbourhood of Mt. Lambie. 

 For the first two days not a single specimen of Leindodendron 

 could be discovered, but on the third day about twenty 

 specimens of Lepidodendron australe were discovered by us 

 in situ near to the locality where similar specimens had been 

 previously obtained by the Rev. W. B. Clarke and the late 

 Government Geologist, Mr. C. S. Wilkinson ; and about six 



