376 
Note on Black Flint in Base of Bore No. 11 at 600 Feet. 
These flint bands are a common feature in certain of the Janjukian (poly- 
zoal) rocks of Victoria and South Australia. Dr. G. J. Hinde, F.R.S., has 
written an interesting note (Geol. Mag., Dec. III., Vol. VIII., 1891, p. 115) 
upon a nearly similar rock occurring in the Cainozoics of Yorke Peninsula, 
South Australia, sent to London by Mr. H. Y. L. Brown, F.G.S. The only 
difference between the present black flint and the cherty rock referred to 
appears to be in the yellowish colour of Ahe latter, and in its less glassy and 
more wavy texture. As in the South Australian specimen, the present sample 
contains numerous polyzoa, and also foraminifera, but siliceous sponge 
remains appear to be absent, or they may have been subsequently dissolved 
during the formation of the chert or flint. There is no doubt that, as in the 
case of the chalk flint, the Victorian and South Australian Tertiary flints 
are due to the silicification of the calcareous ooze in situ , the primary source 
of the silica being in all probability the siliceous sponges. 
6. LIST OF SPECIES FOUND IN THE MALLEE BORES Nos. 1-11 * 
Name. 
PLANTJE. 
Boring fungus, Indet. 
Lithothamnlon ramosissimum, Rss. sp. 
„ aff. lichenoides, Ell. and Sol. 
„ spp. indet. 
(?) Lithophyllum sp. 
ANIMALIA. 
Foraminifera. 
Biloculina elongata, d’Orb. 
,, irregularis, d’Orb. 
Miliolina oblonga, Mont. sp. 
,, circularis, Born. sp. 
„ trigonula, Lam. sp. 
„ seminulum, L. sp. 
„ vulgaris, d’Orb. sp. 
„ cuvieriana, d’Orb. sp. 
,, ferussacii, d’Orb. sp. 
„ bicornis, W. and J. sp. 
„ schreiberiana, d’Orb. sp. 
,, agglutinans, d’Orb. sp. 
,, (Massilina) secans, d’Orb. sp. 
Trillina howchini, Schlumb. 
Sigmoilina schlumbergeri, A. Silv. 
,, sp. indet. 
Planispirina sphaera, d’Orb. sp. 
,, exigua, Brady 
Hauerina intermedia, Howchin 
Orbitolites complanata, Lam. 
Haplophragmium emaciatum, Brady 
,, canariense, d’Orb. sp. 
„ sphseroidiniforme, Brady 
Ammodiscus ovalis, Chapm. 
Textularia gibbosa, d’Orb. 
,, sp. indet. 
Spiroplecta sagittula, Defr. sp. 
,, gramen, d’Orb. sp. 
Gaudryina pupoides, d’Orb. 
„ rugosa, d’Orb. 
Verneuilina spinulosa, Rss. 
Bulimina elegans, d’Orb. 
„ elegantissima, d’Orb. 
,, contraria, Rss. sp. 
Vlrgulina schreibersiana, Cz. 
Bolivina punctata, d’Orb. 
,, textilarioides, Rss. 
„ nobilis, Hantken 
„ limbata, Brady 
s , robusta, Brady 
„ sp. indet. 
Name. 
Foraminifera— continued . 
Cassidulina subglobosa, Brady 
,, oblonga, Rss. 
Lagena gracilis, Will. 
,, squamosa, Mont. sp. 
,, schlichti, A. Silv. 
,, marginata, W. and 
,, orbignyana, Seg. 
Nodosaria (Glandulina) laevigata, d’Orb. 
„ scalaris, Batsch sp. 
,, raphanus, L. sp. 
,, badenensis, d’Orb. 
,, affinis, d’Orb. 
,, (Dentalina) pauperata, d'Orb. sp. 
„ ( „ ) consobrina, d’Orb. 
,, ( ,, ) soluta, Rss. 
,, i ,, ) multilineata, Born. Bp. 
„ ( ., ) obliqua, L. sp. 
Frondicularia complanata, Defr. 
,, insequalis, Costa 
,, lorifera, Chapman 
Marginulina glabra, d’Orb. 
,, costata, Batsch sp. 
Vaginulina legumen, L. sp. 
Cristellaria tricarinella, Rss. 
,, aculeata, d’Orb. 
,, articulata, Rss 
,, rotulata, Lam. sp. 
,, cultrata, Montf. sp. 
Polymorphina lactea, W. and J. Bp. 
,, gibba. d’Orb. 
,, compressa, d’Orb. 
j, elegantissima, P. and J. 
,, dispar, Stache 
,, communis, d’Orb. 
,, problema, d’Orb. 
„ oblonga, d’Orb. 
,, reglna, B. P. and J. 
,, sororia, Rss. 
,, rotundata, Born. sp. 
TJvigerina angulosa. Will. 
,, tenuistriata, Rss. 
Sagraina striata, Schwager 
,, raphanus, P. and J. 
Globigerina bulloides, d’Orb. 
,, triloba, Rss. 
„ conglobata, Brady 
,, sp. indet. 
Pullenia qulnqueloba, Rss. 
Sphseroidina bulloides, d’Orb. 
Patellina corrugata, Will. 
* For details see “ Descriptions of New and Rare Fossils obtained by Deep Boring in the Mallee ” ; 
Pt. I., Plantae ; and Rhizopoda to Brachiopoda (F. Chapman), Proc. Roy. Soc. Viet., Vol. XXVI. (n.s.), 
Pt. I., 1918; Pt. II., Mollusca (F. Chapman and C. J. Gabriel), Ibid. Vol. XXVI. (n.s.), Pt. 2, 1914; 
Pt. III., Ostracoda to Fishes (F. Chapman), Ibid., Vol. XXVII. (n.s.), Pt. I., 1914. 
