THE VICTORIAN NATURALIST. 99 



ground," indicating that the drainage would probably contain 

 these lower forms of crustaceans. 



2. By Mr. T. S. Hart, M.A., B.Sc, entitled " Notes on a Visit 

 to Tower Hill, Koroit." 



The author described the characteristic features of the extinct 

 volcano of Tower Hill, with its surrounding lake, which he con- 

 sidered should be regarded rather as an " explosion " lake than a 

 crater lake, and exhibited a map and photographs in illustration 

 of his paper. 



3. By Mr. T. S. Hart, M.A., B.Sc, entitled "The Tuffs of 

 Lake Burrumbeet." 



The author described the rock sections exposed in the cliffs 

 surrounding the north-western portion of Lake Burrumbeet, in 

 the Ballarat district. The cliffs consist of volcanic material, 

 imbedded in which are numerous granite blocks, ejected from a 

 vent or vents, probably now covered by a portion of the lake. 

 The paper was well illustrated with maps, photographs, and rock 

 specimens. 



In the absence of the author these two papers were taken as 

 read, a brief resume of the contents being given by Mr. T. S. 

 Hall, M.A. 



4. By Mr. G. Lyell, jun., entitled " Description of a New 

 Australian Butterfly, Xenica tasmanica.'" 



The author described a butterfly from Tasmania belonging to 

 the genus Xenica, which he named X. tasmanica. It approaches 

 most closely to X. hobartia, Westwood, but is much darker. 

 The specimens were taken at Strahan, on the West Coast. 



5. By Mr. J. H. Gatliff, entitled " Note on the Type of 

 Thalotia dubia, a Shell described by Tenison-Woods." 



The author stated that he had carefully examined the type 

 specimen of Thalotia dubia in the National Museum, Melbourne, 

 and from comparison with a large series of specimens of T. conica, 

 Gray, he was convinced that it was only an abnormal form of 

 that species, and that T. dubia must therefore rank as a synonym 

 of T. conica. 



6. By Mr. F. M. Reader, F.R.H.S. (communicated by Mr. G. 

 Coghill), entitled " Contributions to the Flora of Victoria," 

 part x. 



This was a description of a new grass from the Wimmera dis- 

 trict, N.W. Victoria, and named by the author Stipa eremophila. 



7. By Mr. F. M. Reader, F.R.H.S. (communicated by Mr. 

 G. Coghill), entitled "Contributions to the Flora of Victoria," 

 part xi. 



In this paper the author described some well-defined varieties 

 of grasses of species belonging to the genus Stipa which had 

 come under his notice during several years' collecting in the 

 Wimmera District. 



