GLACIAL DEPOSITS OF BACCHUS MARSH. 377 



of the excursion above referred to in liis report to the Field Natura- 

 lists' Club.* We soon found, however, that the subject and the 

 locality were such that they could not be fairly dealt with in a 

 hurry, and we concluded it was better to delay publication than 

 give utterance before we had quite digested all the more salient 

 facts. However, we communicated to such fellow-workers as 

 we came in contact with the results of our work ; for instance, to 

 Professor K. Tate, in January, 1892, and one of us exhibited 

 several of the striated pebbles at the Field Naturalists' meeting 

 in the same month. f 



Shortly after this, on February 5th, 1892, we traced the junction 

 of the dejiosit with the Siku'ian rocks, and photographed the site 

 of the first smoothed and scratched rocks discovered. We con- 

 tinued to investigate the subject as opportunity offered, and had 

 concluded that the evidence before us confirmed the general 

 correctness of the opinions of the early geologists concerning the 

 lower conglomerates, for we had obtained in abundance the striated 

 pebbles they failed to find ; and we had extended the area over 

 which they were foimd very far beyond the locality of the conglo- 

 merates referred to by them, and into other rocks, Adz., the mudstones 

 and sandstones lying to the north-west of those described by Mr. 

 Dunn and others. 



In the following June of that year Messrs. Graham Officer, B.Sc, 

 and Lewis Balfour visited the locality for the first time, and on 

 several occasions were conducted over various parts of the area, 

 and shown the chief points of interest then known to us, by one of 

 the present writers, and on July of the same year they read a paper 

 before the Royal Society of Victoria, entitled " A Preliminary 

 Accoimt of the Glacial Deposits of Bacchus Marsh." As this paper 

 treated of a work on which we had been for some nine months 

 previovisiy engaged, and as one of us (Mr. C. C. Brittlebank) had 

 conducted one or more of these writers to many of our first dis- 

 coveries, and as, further, their conclusions differed so utterly from 

 ours, we still further delayed publication, and reviewed our work, 

 seeking still further evidence, with the result that the further 

 evidence but confirmed our previous conclusions. 



Following this a second ])aper was read in June, 1893, retracting 

 some and very much modifying other contentions of the first pajjer, 

 but without giving the evidence on which the retraction was made, 

 and still embodying some of the errors of the first. We have 

 therefore concluded to adhere to our first intention, and give the 

 facts as observed by us. 



The rocks of which this paper treats have now been traced from 

 a little south of the Ballarat railway line to the Lerderderg Ranges 

 and Mount Blackwood in the north, and from Bacchus Marsh in 

 the south-east to near Ballan in the north-west. Leaving Mel- 

 bourne, the first point at which these rocks have been observed to 



•Vict. Nat., vol. viii., p. 100. + Vict. Nat. vol. viii., p. 132. 



