i88 SCIENCE PROGRESS. 



formations the Glossopteris flora has been recorded, includ- 

 ing the following species : — 



Phyllotheca australis, Brong. Glossopteris Browniana, Brong. 



Sphenopteris lobi folia, Morris, G. linearis, McCoy. Etc. 

 and other species. 



In Victoria a group of strata known as the Bacchus 

 Marsh Sandstones rests on rocks containing Devonian and 

 Lower Carboniferous plants, and includes extensive boulder 

 beds of undoubted glacial origin. Among the plants re- 

 corded are : — 



Gangamopteris obliqua, McCoy. G. Spahilala, McCoy. Etc. 



In Tasmania^ plant-bearing beds occur in the Mersey 

 coalfield and in the neio-hbourhood of Hobart which are 

 correlated with the Permo-Carboniferous beds of India and 

 other regions. Glossopteris, Gangamopteris, Phyllotheca 

 and other characteristic genera of the Glossopteris flora have 

 been found in these strata. 



A valuable addition has recently been made to our 

 knowledge of Australian glacial deposits and rocks of 

 Permo-Carboniferous age by Professor Edgeworth David." 

 He gives an able account of the stratigraphy of Australian 

 districts and throws fresh light on the conditions which 

 obtained during Permo-Carboniferous times. 



Africa.^ — Our knowledge of the South African beds is 

 on the whole less satisfactory and more imperfect than in 

 the case of India and Australia. An extensive area of the 

 Cape is covered by a series of sandstones and shales with 

 interbedded coal seams, known as the Karoo series. 

 These rocks " occupy the largest portion of South Africa, 

 as they compose the whole of the interior, forming the high 

 elevated plains of the Kalahari, the Free States of the 

 Transvaal, as well as the countries to the north as far up 

 as the Limpopo; they are also to be met with at the 

 Zambezi ".* The Karoo formation has been subdivided as 

 follows : — 



^ Johnston and Feistmantel (3), etc. 2 David. 



^ Oldham, Green, MouUe (good sections given in this paper), Waagen 

 (i), Jones, Feistmantel (5), Schenck (a good geological Map of South 

 Africa is given by Schenck), De Launay. 



^ Griesbach, p. 57. 



