| FORAMINIFERA. | ||||
Nummulina
lævigata. |
N. lævigata. | |||
Nummulina
scabra. |
N. scabra. | N. scabra. | ||
Nummulina
variolaria. |
N. variolaria. | N. variolaria. | ||
Miliola
(Triloculina). |
Miliola
(Quinqueloculina). | |||
| Guttulina. | Guttulina. | |||
Rotalia obscura
(and others). | ||||
| Lignite. | Lignite. | |||
| Pyrites. | Pyrites. | Pyrites. | ||
Should one wish to take in hand the examination of a series of the tertiary strata of any part of the Isle of Wight basin, in the manner above suggested, well assorted samples, collected and labelled with care, can be readily obtained of Henry Keeping, of Freshwater, who is an intelligent and trustworthy collector, and whose charges are moderate.
ON THE OCCURRENCE OF A PECULIAR SUBSTANCE IN THE LIMESTONE OF SOUTH AUSTRALIA.
By W. Murray, Esq., C.E.
Fig. 1.
Taking a section across the Murray River Valley, in South Australia, for a distance of about forty miles from west to east, we have (as shown in the accompanying diagram) two parallel ranges, and on the outer flank of the western range there are at some places micaceous strata (A), having a steep inclination, resting against the contorted strata of the range, sections of which are seen in gaps and gullies, with steep sides, in some instances 800 to 1000 feet deep. These
