216 
276. —Coral limestone with a gritty matrix. Favosites multitabulata r 
Eth. fit. (See Appendix, and PI. XXX., Figs. 4 and 5); also a monticul- 
poroid, indet. 
277. —A crinoidal limestone with the interstitial material formed of 
green chloritic products. The included organisms consist largely of 
crinoidal ossicles, and are accompanied by a few fragments of polvzoa. 
(See PI. XXXI., Fig. 6.) 
278. —A limestone composed chiefly of crinoid ossicles and stem-joints. 
A few obscure corals seen- on the weathered surface. The main part of 
the rock is recrvstallized, and the calcitic fragments show secondary 
lamellar twinning, induced by pressure. (See PI. XXXI., Fig. 7.) 
Age.—Probably Devonian. 
Fossiliferous Limestone.—Glen Wills, Wombat Creek. Coll, by Mr. 
E. J. Dunn, F.G.S. Nos. 1456-1461. 
1456. —From first large outcrop N. of Limestone Gap, Wombat Creek? 
near Glen Wills. The weathered surface of this limestone specimen ex¬ 
hibits a species of Favosites (a ramose form); a moderately large, encrust¬ 
ing stromatoporoid; and several corallites of small rugose corals, indet. 
The microscope slide made from the rock does not assist the determination 
of the corals, since the material is secondarily crystallized and largely 
dolomitized. 
1457. —Limestone Gap, Wombat Creek, near Glen Wills.—A much 
altered limestone; containing some obscure remains of corals. 
1458. —Limestone Gap, Wombat Creek, near Glen Wills.—Corals and 
stromatoporoids, indet. Rock much altered 
1459. —First limestone S. of Limestone Gap, near Glen Wills.—Fossil 
contents not well preserved. Indications of the presence of a (?) Try- 
plasma, sp. indet. 
1460 and 1461.—First large outcrop S. from Limestone Gap, Wombat 
Creek, near Glen Wills.—A gigantic stromatoporoid allied to Clathro- 
dictyon. The laminae are broken up by a series of oblique fracture planes, 
filled with crystals of dolomite. (See PI. XXXII., Figs. 8 and g.) 
The age of these beds is doubtful. The evidence of the fossils, al¬ 
though rather slender, points to the Silurian. Try plasma is a genus re¬ 
stricted to beds of that age, whilst Clathrodictyon is also common in the 
Silurian, and rare in the Devonian. 
Limestone Outcrop.—Mitta Mitta River. Coll, by Mr. E. J. Dunn, 
F.G.S. 
774 -—-A fine-grained brown sandstone, with a cast of brachiopod,. 
probably referable to Atrypa sp. 
Age uncertain. 
Appendix on the Fossils. 
Cyaihophyllum (?) sweeti , Eth. fil. Plate XXIX., Figs. 2 and 3. 
A transverse section of nearly one-half of the corallum of a Cyatho - 
phyllum is seen in microscope-slide 1103. The septa are stout, and number 
about 60 in the complete disc; the dissepiments are numerous in the peri¬ 
pheral half of the corallum. In many points this fossil seems to conform 
