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travertin with wliicli they were closely associated. Formerly 

 both Mr. Gould and Mr. Allport concluded from the bone 

 remains that the " travertin must be of Kecent Tertiary or 

 Post Tertiary age," and consequently that the intrusive basalt 

 must be of still more recent origin. 



The discovery of fossil seeds of plants, which have since 

 proved to be closely allied to fruits widely distributed 

 throughout Australia and Tasmania, led Mr. Allport to 

 enquire more particularly into the circumstance connected 

 with the discovery of the fossil bones. This enquiry fully 

 justified his supposition that the bones were obtained from 

 a matrix derived from the originally deposited travertin, and 

 deposited in crevices of the same rock probably formed by 

 the intrusion of the overlying basalt ; and he concluded 

 (notice of Eoy. Soc. Proc. of Tas., 13th June, 1876), " We 

 must, of course, regard the basalt referred to as an earlier 

 formation than the diluvium from which the bones referred 

 to were obtaiued, but still as of later date than the 

 travertin." 



In my second paper on the Launceston Tertiary Basin, read 

 before this Society in the year 1876, I suggested that the 

 travertin beds might belong to the same series as those in the 

 neighbourhood of Launceston, and possibly of the same age 

 as the marine beds at Table Cape and elsewhere in Aus- 

 tralia. I made this suggestion because I observed a close 

 resemblance between certain of the undetermined leaf remains 

 common in the respective deposits, and from the circum- 

 stance that all the deposits referred to are capped by a more 

 or less decomposed basalt, which, upon analysis, proves to be 

 the same chemically and structurally. Prof. Ulrich also 

 informed me that the basalts at Geilston Bay, Breadalbane, 

 and Table Cape, are essentially the same as the rock known 

 as the " Older Volcanic " in Victoria, which, also, frequently 

 caps certain marine beds in Victoria, that are now certainly 

 proved to be of the same horizon as our marine beds of 

 Table Cape. 



I have since gathered abundant evidence of the very wide 

 distribution of this rich soil-maker from nearly all parts of 

 Tasmania, particularly in the plains about Campbell Town, 

 Fingal, Avoca, Piper's River, Myrtle Bank, Ringarooma, 

 Deloraine, George Town, Torquay, Flinders Island, Lake St. 

 Clair, Mt. Bischoff, Middlesex Plains, Cattley Plains, &c., &c., 

 in all which places it forms the rich chocolate soil of the 

 district, and in auriferous and stanniferous regions it 

 frequently overspreads the alluvial drifts and stream tin. 

 It is of importance that miners should take cognisance of 



