124 THE PROGRESS OF GEOLOGICAL RESEARCH IN TASMANIA, 



More recently, F. Chapman, A.L.S., has studied certain 

 fossils from the Silurian limestone, and has prepared a des- 

 cription of the occurrence of Tetradium therein, which has 

 been published as Geological Survey Record No. 5. 



(2). Permo-Carboniferous. 



As the result of the investigations carried out by the late 

 W. H. Twelvetrees in the Mersey basin, our knowledge of the 

 character of the organic component of the Tasmanite shale 

 has been appreciably increased. In connection with the 

 same examination also, W. S. Dun carried out some 

 palseontological work on the Marine fauna of the Permo-Car- 

 bonifercus beds in that area, and these are dealt with by 

 that investigator in Geological Survey Record No. 1. 



Apart from these increases to our knowledge there has 

 been no advance in our Permo-Carbonifercus palaeontology. 



(3). Trias- Jura. 

 No study similar to that carried out in recent years by 

 Dr. Walkom in Queensland has been accomplished in Tas- 

 mania. The systematic geological survey of our coal-fields 

 and other Trias-Jura areas now in progress is supplying 

 material which promises to give important information. Mr. 

 H. H. Scott is undertaking the palaeontological work on these 

 collections, and a contribution is anticipated which will mark 

 a step forward in connection with this field of investigation. 



(4). Tertiary. 



A considerable amount of work was accomplished by the 

 late Miss M. Lodder on the marine beds of Table Cape. An 

 indefatigable collector in the same locality was the Rsverend 

 E. D. Atkinson. B.A. 



A marsupial from this formation — W ynyardia basscnsis, 

 Spencer — is believed to link the Diprotodonts with the Pcly- 

 protodonts. 



There has. however, during the period under review 

 been no work whatever accomplished on our particularly rich 

 Tertiary flora, and as far as can be seen at present there is 

 no likelihood of any attention being paid to this most inter- 

 esting field for research for some years to come. 



(5). Pleistocene and Recent. 



The Mowbray Swamp on the North-West Coast has sup- 

 plied within the last ten years two most valuable and inter- 

 esting skeletons of Nototheria. It is to the enthusiasm and 



