110 



River Murray into the mallee lands of N.W. Victoria. The 

 quality of the water has not altogether been unsuspected, and it 

 is clear from the position of Mulgundawa that the water is im- 

 pounded, and in consequence has acquired an accession of 

 •mineral ingredients ; but it is not improbable that, in course of 

 time, some sensible diminution in the percentage value of its 

 salts will result. 



BORE-SECTION AT MULGUNDAWA. 



Feet. 



30-40. Fine yellow sand, with fragments of oyster ; pectens and 

 spines of Cidaris. 



43. Greyish-yellow fine-grained calciferous sand, with calciferous 

 sandstone pellets. Isis sp. and Polyzoa. 



60-69. Similar to 43. Terebratulina catinuliformis, Isis sp., 

 Scutellina patella, Fibularia gregata, Polyzoa. 



75. Same as 43. Shell fragments very rare. 



84-93. Same as 60-69. Fossil-debris rare. Scutellina patella 

 and other Echinoderms, Graphularia, Dimya 

 dissimilis. 



97-98. Grey, extremely calciferous sand, and slightly argillace- 

 ous. No fossils. 



100-107. Same as 60-69. Terebratulina catinuliformis. 



160-164. Greenish-grey, very fine-grained, calciferous sand. 

 Terebratulina catinuliformis. 



175. Yellowish-grey, calciferous, sandrock. 



,180-186. Bluish-grey, clayey sand, very fine, and slightly cal- 

 careous. No fossils. 



188-200. Grey calciferous sand and sandrock. No fossils. 



202-206. Mottled grey-brown sandy clay. Chief source of the 

 fossils. 



207-208. Very stiff brown-black clay. 



209. Brown clayey sand. 



216-226. (From seven levels.) Very stiff brown-black clay. 



230-232. Brown clayey sand. 



238. Light brown clayey sand. 



246-250. Stiff black clay. 



254-260. Black and grey clays. 



264. Brown clayey sand. 



265. Brown sharp sand, with much comminuted shell-debris ; 



the fossils corroded and eroded ; small splinters of 



carbonised wood, freely diffused. 

 285. Grey calciferous sand, with shell-debris. 

 292. Greyish-white sand, very fine-grained ; the coarser residue 



of translucent sub-angular quartz grains up to 



5 mm. diameter ; fossiliferous, and splinters of 



carbonised wood. 



