162 Proceedings of the Royal Society of Victoria. 



C. — 5 feet of muclstone, with few pebbles, underlain sharply 

 by 3 feet of pebbly gravels. (These gravels are 

 probably thicker, but the section precludes more 

 from being seen). 

 D. — Dense, dark, laminated, and irregularly-jointed basalt, 

 with small crystals of a glassy felspar % showing in 

 bed of gully where alluvium masks the surface. 

 I was not enabled to examine the river cliffs near here, so can- 

 not say anything more with respect to the succession of rocks. 



At the Werribee Bridge at Exford, again, in the road cutting 

 on the western bank, the following succession is noticeable, 

 beginning at the highest : — 



A. — A few inches to 6 feet of drift consisting of pebbles of 



rocks similar to those referred to in the gully section. 



B. — Vesicular and scoriaceous basalt, in part decomposing 



in laminations. Layers of white carbonate of lime 



occur in this basalt ; also a considerable amount of 



white clay, containing decomposing amygdules of a 



brownish colour and soapy nature. 



C. — Very finely sandy clays of white, brownish-yellow and 



reddish colours, containing fine subangular grains of 



quartz, and numerous small pebbles of quartz, and 



dense slightly vesicular basalt in the higher portion ; 



but full of such pebbles in the lower portion. 



From this point to the river level — about 30 feet below — the 



rock is masked by material washed down the slope, but almost 



without doubt basalt occurs beneath, as at the junction of Toolern 



Creek with the Werribee River, about 200 yards below the bridge, 



basalt can be seen down to the water level in the eastern cliffs. 



This sandy clay has rather a peculiar appearance, and may not 

 entirely owe its present location to transportation by water. It 

 may perhaps be a mixture of water-transported material, and 

 that ilirectly derived from a volcanic source. 



In the explanatory sheet of notes published with Quarter-sheet 

 No. 12 N.E. (Bacchus Marsh), Messrs. R. Daintree and C, S. 

 Wilkinson, who surveyed the area included therein, make the 

 following notes :— Note 15, "Section at head of small ravine, 

 showing 30 feet vesicular basalt, and 4 feet volcanic ash, mixed 

 with a little white quartz sand resting on red ferruginous sand 



