XU 
In a preliminary report^ on tlie a1)Ovc plants Mr. 11. Etheridge, Junior, 
disensscs the evideiuje which they supply as to the stratigraphical horizon oL‘ 
the Eish Beds, and coneliidcs promsioncdhj that tlie latter are jirohaldv the 
ecpuvalents of the Bellarine Scries of Victoria and the I])swieh Scries of 
Queensland, with relations to the Clarence Series of N. S. Wales. 
In addition to the above-mentioned ]Jants Mr. C. Cullen collected a 
single specimen of a Bhyncotous insect, wliicli has been already dcscril)ed under 
the name of Cicada ':* Lowei by B. Etheridge, Junior, and A. Sidney Olliff.- 
\ 
The Eish Beds are succeeded conformably by wliite siliceous shales 
which do not ap})ear to be fossiliferous. They consist of silica in a very fine 
state of division, but microscopic examination has failed to reveal definite 
traces of any organisms. Their thickness is about fifteen feet. The following 
analysis of this rock has been made by Mr. J. C. II. Mingaye, E.C.S. : — 
Moisture at 100° C.... 
-40 
Combined AA’ater 
1-04 
Silica... 
97-02 
Alumina and trace of ferric oxide... 
1-70 
Magnesia 
-18 
Soda ... 
trace 
100-34 
A siliceous ironstone conformably overlies tlicsc shales, its fhickness 
being approximately seven feet. Eerruginous solutions (ierived from it have 
in })laces permeated the nhite shales below. A well watcu'worn and ratlier 
coarse gravel of inconsiderable thickness succeeds the ironstone, as far as can 
l)c judged from the somewhat oliscure sections, and is locally cemented by the 
latter. Among other rocks the gravel contains undoubted pebbles of sand- 
stone of the Itawkesbury Series, showing it to bo decidedly noAver than that 
formation. 
The gravels are cap])ed liy a very coarsely crystalline olivine-doleritc, 
havine: a maximum thickness near its northern extremitAg as shoAvn on the 
])lan, of about sixty feet. A small patch of Ijasalt is observable near the soutli- 
Avest corner of Boyce’s Selection, and is possibly ncAver than the dolerife. 
’ Vt(h also Ann. ]\ep. for Dcp. Mines X. S. AA’ales 18S!) [ISflO], p. 2o7. 
- Mem. Oeol. Survey N. S. AA’ale.s, l“al. Xo. 7. The Alesozoic and Tertiary Inserts of New South AAhilcs, 
by R. I'ltheridge, .Junior, and A. Sidney Olliil. 4to. Sydney, 18!)0. liy Authority. Tlie Authors state (op. cif. 
1 >. .■?), “It is exceedingly probable, therefore, that, although of Lower Mesozoic age, the lieds containing the 
'J’albragar fossils will be found to be higher, stratigraphically, than the Uosford lish-bed.” 
