30 



2.— GEOLOGY. 



Mr. G. Thurean informs us^ tliat tlie rocks eontaininj^ 

 the silver-lead ores at Zeehan belong to the Sikiriaii series, 

 and consist of very murli contorted dark blue shales and 

 grey sandstones. The fossils he noticed were " Trilobites, 

 Polyzoa, Corallites, Crinoids, and Brachiopoda." Of the 

 Zeehan deposits, Mr. Montgomery says" the country rock 

 consists of Silurian grits, sandstones, and slates, in many 

 places ranch bent, contorted, and twisted. The central 

 portion of the Heazlewood District, he remarks,^ is com- 

 posed of Silurian sandstones and limestones, &;c. 



Mount Zeehan is situated in the County of Montagu, on 

 the west coast of Tasmania, to the east of Trial Bay, some 

 distance north of Macquarie Harbour, and between the 

 Badger Kiver and the coast. Heazlewood is still further 

 north, north-east of the town of Corinna, m County of 

 Bussell, as shown on " Sketch Map — General Geological 

 Features of Tasmania," in Johnston's work. 



3.— LIST OF THE FOSSILS BY LOCALITIES. 



Heazlewood. — 



Favosites grandipora, Eth. jil. 

 Hausmannia meridianus, Eth. fil. and Mit. 



Zeehan. — (Despatch Limestone.) 

 Asaph us, sp. ind. 



Hausmannia meridianus, Eth. fil. and Mit. 

 Hausmannia, sp. ind. 

 Illsenus Johnstoni, Eth. Jil. 

 Ampliion? brevispinus, ^^A.^/. 

 Leptodomus.^ nuciformis, Eth. Jil. 

 Eunema Montgomerii, Eth. Jil. 

 Orthoceras, sp. ind. 



Heazlewood. ^ — (Blue-grey schistose rock.) 

 Cornulites tasmanicus, Eth. Jil. 

 Cromus Murchisoni, De Kon. 

 Rhynchonella decimphcata, J. de C. Shy. 

 Rhynchonella capax, Conrad. 

 Tentaculites, sp. ind. 



' Mount Zeehan Silver-Lead Lodes and other Deposits, 1888, p. 1. 

 ■^ Report on the State of the Mining Industry on the West Coast, 1890, 

 p. 7. 



^ Ibid, p. 15. 



