182 Proceediiujs of the Royal tiocietij of Victoria. 



scored stones can be seen, as if they liad been laid down on a 

 level pavement, e.g., sections near Elara's farm. The matrix is 

 mainly argillaceous; it is usually fine-grained, Ijut is in places 

 from medium- to coarse-grained. 



Glacial conglomerates. The second division of tiie glacial 

 beds which we make we have, for want of a better term, called 

 glacial conglomerates. These beds sometimes show an ill-defined 

 stratification, but they very often appear to be quite unstratified. 

 The matrix is very similar to that of the stratified mudstones, 

 but the included scoi'ed stones are on the average somewhat 

 smaller. The beds are usually of a purple colour whei'e 

 unweathered, and are extremely hard. The main difference 

 between these beds and the mudstones is a question of stratifica- 

 tion. It may here be mentioned that in both beds already 

 described, irregular "nests" or patches of true conglomerate and 

 coarse angular grit occur. 



Stratified safidstofies and freestones. These are well stratified 

 beds forming the highest of the glacial series ; they are developed 

 only in the area between the Lerderderg River and Goodman's 

 Creek, with the exception of a small outcrop on the E. of 

 Goodman's Creek near its junction with Back Creek. They are 

 quite similar in appearance to the Bacchus Marsh sandstones, and 

 like them have been largely quarried for building purposes ; they 

 have yielded no fossil remains. They are often highly calcareous 

 and sometimes contain magnesia. The frequent presence in these 

 beds of erratics shows that the glacial conditions had not entirely 

 passed away ; it is worth noticing that these erratics are for the 

 most part granite. They sometimes show current-bedding. 



As the niap of the district published herewith only shows the 

 general distribution of the glacial series, it may be mentioned 

 that the stratified mudstones are best exposed in the Goodman's 

 Creek near and aVjove Elam's farm, on the Lerderderg River, 

 S.W. of this point, and on the Pyrete Creek, S. of the township 

 of Coimaidai. The largest e.xposure of the conglomerate is in 

 the S.W. part of our district, and of the sandstones at and south 

 of the junction of Back and Goodman's Creeks, occupying the 

 higher elevations. 



Field observations. Starting at the S. end of Goodman's Creek, 

 the glacial conglomerates extend northwards for se\eral hundred 



