Ordovi.ciaii R'icl-s. 71 



there it also occurs apparently without 0. iipsilon, though the latter 

 occurs without it further north, near Steiglitz, as already noted. 



(cj) The Series in, other Locdlities. 



Most of the localities from which, as far as the writer knows, 

 Darriwil graptolites have been obtained, have already been men- 

 tioned. They may be sunmiarised as under : — 



(1) Between Castlemaine and Muckleford Creek, and south- 



west of Guildford. (Lower, Middle, and Upper). 



(2) At Woodend (eight miles S.W. of Woodend) and Mace- 



don. (Lower.) (They are well represented north of 

 Old Gisborne township, and along the railway south of 

 Macedon R.S.), and at Newham (Upper?). 



(3) Near Ingliston. and perhaps at Coimadai and Melton 

 (Lower). 



(4) At Steiglitz (Lower). 



(5) South of Steiglitz (W.L.S. 2 and W.L.S. 3, i S., 19 



S.W.), parish of Coole Bharguk (Middle), and at Darri- 

 wil (W.L.S. 1) (Upper). 



XI. Summary of Conclusions. 



The proposed revised classification is the outcome of a critical 

 examination of a number of sections and localities in which the 

 stratigraphical relations of the beds are those given in the stra- 

 tigraphical table. 



This stratigraphical table shows : — 



(a) An agreement in general with Dr. Hall's subdivision of the 

 Castlemaine series. 



(b) .\ new series above tlie Castlemaine series and between it and 

 including the Darriwil beds of Dr. Hall. This is described as the 

 Darriwil series. 



(c) A subdivision of this extended Darriwil series into three 

 zones based on the risie and fall and the association of certain de- 

 scribed species and new species (to be described in Part IL of this 

 paper). 



(d) A record of the Upper DarriAvil series at Guildford. 



The stratigraphical position, nature of facies, the evidence sup- 

 plied by D. caduceus, and a list of localities where the Darriwil 

 series is known to occur in other parts of the State of Victoria, have 

 been given in more or less detail. 



The country examined to obtain the evidence necessary to erect 

 this new series comprises that already examined by Dr. Hall and a 



