386 PROCEEDINGS OF SECTION C. 



DESCRIPTION OF PLATES. 

 Plate I. 



Fig. 1. — Girvanella C^.) pisolitica, Wethered. An example showing 

 both ovoid cells and tube cells. Silurian. Tyers River, x 56. 



Fig. 2. — An enlargement of four cells of the same specimen show- 

 ing the fractured wall, x 220. 



Fig. 3. — G.{1) 'pisolitica, Weth. Example showing ovoid cells 

 passing into tube cells. Tyers River, Gippsland. x 56. 



Fig. 4. — G.{i) ■pisolitica, Weth. A series of cells with the earlier 

 segments resting within, and apparently having produced corrosion of, 

 a crinoid arm-ossicle. Tyers River, Gippsland. x 56. 



Fig. 5. — G.{]) pisolitica, Weth. A series of ovoid segments nestling 

 within axial canal of a crinoid arm-ossicle. Tyers River, Gippsland. 

 X 56. 



Fig. 6. — The same specimen with initial cell more highly magnified, 

 showing papiUiform outgrowths, x 230. 



Plate II. 



Fig, 1. — Girvanella cf. wetheredii, sp. nov. Tyers River, 

 Gippsland. x 175. 



Fig. 2. — A pellet of the same form. Tyers River, Gippsland. 

 X 35. 



Fig. 3.— Girvanella conferta, Chapman. Tyers River, Gippsland. 

 X 175. 



Fig. 4. — A pellet of the same species. Tyers River, Gippsland. x 35. 



Plate III. 



Fig. 1. — Girvanella prohlematica, Nich. and Eth., L. Cambrian. 

 Ardrossan, S.A.. x 35. 



Fig. 2. — G. conferta, Chapm. Wenlock limestone, Dudley, x 35. 



Fig. 3. — G. wetheredii, Chapm. Silurian (Yeringian) Cave Hill, 

 Lilydale. x 35. 



3.— NOTES ON THE SCHISTOSE ROCKS EAST OF THE MOUNT 

 LOFTY RANGES. 



By W. G. WOOLNOUGH, D.Sc. 



4.— ROCK PHOSPHATES IN THE HUNDRED OF BRIGHT, 

 SOUTH AUSTRALIA. 



Bij W. 'G. WOOLNOUGH. D,Sc. 



