Vol. XXVII, 



1910 



1 Field Naturalists' Club — Proceedings. 19 



ago that the Striated Grass- Wren of North-West Australia built a 

 nest with a protecting cover, his statement had been questioned, 

 but a photograph of a nest reproduced in the last number of the 

 Bmu showed that his contention was right. 



EXHIBITS. 



By Mr. R. W. Armitage — Photographs in illustration of paper. 



By Mr. A. G. Campbell. — Typical specimen of decomposing 

 Grampian sandstone ; fossil in Grampian sandstone ; felspar 

 porphry dykestone ; slate ; plutonic rock, and three obsidian 

 buttons, from Stony Creek, Grampians. Four Grampian plants 

 which flower during the winter, viz. : — Styphelia Sonderi, Epncris 

 impressa, Correa speciosa (red variety), and Acacia retinodes. All 

 in illustration of paper. 



By Mr. A. J.Campbell, Col. Mem. B.O.U. — Seven photographic 

 enlargements of Grampian scenes, in part illustration of Mr. A. 

 G. Campbell's paper. 



By Mr. C. French, jun. — Dried plants from Grampians. 



By Mr. C. J. Gabriel. — Marine shells : Meretrix lupanaria, 

 Lesson, and M. dione, L., from Central America ; M. erycina, L., 

 from Ceylon; and Lioconcha casfrensis,L.., from Philippine Islands. 



After the usual conversazione the meeting terminated. 



EXCURSION TO MOOROODUC. 



MoOROODUC, on the Mornington railway line, about 35 miles 

 from Melbourne, is a convenient centre from which to visit some 

 of the interesting geological formations of the Mornington penin- 

 sula, and, favoured by fine weather, on Saturday, 23rd April, the 

 excursion party numbered about fifteen members of the Club 

 and twenty-five geological students from the University. 



On arrival at Moorooduc, the attention of the party was 

 drawn to the physiographic features of the district, and espec- 

 ially to the contrast shown by the low-lying rather swampy 

 areas occupied by the Tertiary rocks with the elevated ridge 

 of granitic rocks and older Palaeozoic sediments which trends 

 in a north-easterly direction from Mount Eliza. This ridge 

 was ascended at a point about a mile north of Moorooduc 

 station. The hardened and partially recrystallized Palaeozoic 

 sandstones and shales were examined. Exposures were limited 

 in extent, but certain of the darker shale bands, although 

 cleared and partially recrystallized, yielded remains of grap- 

 tolites such as Didymogra^Jtus caduceus, Tetragraptus serra, 

 Diplograptus, sp., Trigonograptus, sp., &c., and in addition 

 the crustacean, Rhinopterocaris maccoyi, was also found. The 

 horizon is clearly Lower Ordovician, and probably Upper 

 Castlemaine or Darriwill. Further south in the Mornington 

 peninsula graptolites of the Bendigo horizon of the Lower 

 Ordovician have been found. The party then travelled to the 



