The Rev. Tenison-Woods* supplies an account of another 

 sinking at Bingham Station, Tatiara ; " the whole depth of 75 

 feet was occupied by beds of variegated sands of various 

 thickness," the lower 10 feet consisting of sand and clay. 

 According to the same geologist, the most northerly exposures 

 of Older Tertiary are "on the upper part of the Red Cave 

 Range near Broad Meadows, and at Kybobolite on the same 

 range, but about nine miles north," op. cit., p. 18. The Older 

 Tertiary occupies a comparatively small area in our South- 

 Eastern district, in the form of a table land of an average 

 •elevation of about 200 feet, but inclining from south to north. 

 Prom Kybobolite the escarpment passes south by way of the 

 <^ave Range, east of Narracoorte, to about six miles west of 

 Penola, thence by Kalangadoo and Glencoe to its most wes- 

 terly boundary at Mount G-raham. The last place is also the wes- 

 tern termination of the overlying volcanic masses of the Mount 

 Burr Range. From the Mount Burr Range the outcrop ap- 

 proaches to within about sixteen miles west from Mount G-am- 

 bier, thence to Port MacDonnell and the Glenelg River ; 

 much, however, of this portion of the country is covered by 

 ^sh beds and recent marine deposits. The marine pleistocene 

 deposits flank the Older Tertiary from the Glenelg to Cape 

 Northumberland, and thence to IsTarracoorte ; to the north of 

 which older, though Newer Tertiary, deposits complete the 

 isolation of the Mount Gi-ambier beds. 



LEADiifa Botanical Peatuees. 

 In this chapter T wish to set forth the leading floral charac- 

 teristics of the Murray region, as they are sufiiciently varied 

 in relation to geological and hygrometric conditions to justify 

 ^ short review. An enumeration of the species, about 650, 

 •constituting the flora is unnecessary, as that has already been 

 made in my "Census of the Plora of South Australia" and 

 "Supplements" thereto, published in the Transactions of the 

 Society. 



I. OF THE GORGE. 



(a) Fluviatile : — Ranunculus aquatilis, Limnanthemum, two 

 sp. ; Hydrilla, Yalisneria, Ottelia, Potamogeton, three sp.; 

 Cyperaceae, Panicum spinescens (" AVater-grass"), Azolla, two 

 sp. 



(5) AUu>jiu?n : — Myosurus, Ranunculus parviflorus, var. ; 

 Eucalyptus rostrata "("Red-gum"), E. largiflorens ("Box"), 

 Callistemon brachyandrus, Muhlenbeckia Cunninghami 

 (" Polygnum-bush,") which forms dense belts around the 

 lagoons, Abutilon Avicenniae, Acacia stenophylla, Swainsonia 

 ■Oreyana ("Darling-pea"), Glycrrhiza psolaroides, various 



*Eep. Geol. of the South-East, p. 13 ; 1866. 



