138 
by two doubtful specimens only, though at Lancefield it occurs in profusion. 
I have seen one specimen from an unknown locality at Bendigo, presumably 
from a low horizon. Clonograptus, on the other hand, ranges, though not 
common, up into the Castlemaine series. From these facts we may, I think, 
conclude that the Dunolly beds, as represented in this collection, are slightly 
younger than the typical Lancefield ones, and are consequently nearer to the 
Bendigo series in age. 
University, 23rd November, 1906. 
From Dunolly. 
(Collected by Mr. W. H. Ferguson.) 
(a) 10 chains west of'peg 364; Nos. 1050-1066. 
Clonograptus tenellus (?), Nos. 1050, 1055, 1066. 
Clonograptus sp., Nos. 1051, 1052 (?), 1057, 1059, 1061 (?), 1062, 
1064 (?), 1065. 
Bryograptus sp., Nos. 1060 (?), 1063. 
Tetragraptus decipiens (?), Nos. 1051, 1059. 
Indeterminate, Nos. 1053, 1054, 1056, 1058. 
(b) 2.6 chains N., 2.3 chains E., from peg 415; Nos. 1067-1077. 
Clonograptus sp., No. 1069 (?). 
Didymograptus pritchardi, No. 1068 (?). 
Sponge spicules are shown on No. 1077, but the other specimens are 
in determinate. 
(c) 3 chains S., 1.5 chains E ., of peg 409; Nos. 1078-1099. 
(?) Clonograptus sp., Nos. 1078, 1080, 1089, 1091, 1093, 1096. 
No. 1086 is a sponge belonging to the doubtfully valid genus Stepha- 
nella. Some of the remaining specimens are graptolites, but all are inde¬ 
terminate. 
Like the specimens previously sent by Mr. W. H. Ferguson from this 
district, they are lowest Lower Ordovician (Lancefieldian). The poor state 
of preservation of all the specimens makes close determination a matter of 
difficulty; but, even so, the large series now examined from the neighbour¬ 
hood of Dunolly enables the horizon to be very closely fixed. 
From the Jordan River. 
These specimens, collected by Mr. O. A. L. Whitelaw, are from several 
distinct localities. 
(a) Jordan River , 2% miles above Jericho; Nos. 1100-1135. 
Diplograptus calcaratus, Lap., Nos. 1102 (fig.), 1106, 1108, mo, 
1118 (?), 1122, ii2'5, 1126, 1127, 1128, 1130, 1132, 1135. 
Diplograptus tardus , n. sp., Nos. 1102, 1121, 1129, 1133, 1134, 1135. 
Diplograptus spp., Nos., 1100, 1101, 1104, 1105, 1113, 1114, 1115, 
1117, 1119, 1120. 
Climacograptus bicornis, J. Hall, Nos. 1102, 1104, 1108, 1109, mo, 
1112, 1124, 1125. 
Climacograptus bicornis var. peltifer , Lapworth, Nos. 1133, 1134. 
Climacograptus sp., Nos. 1105, 1107. 
Cryptograptus trieornis, Carr., Nos. 1127, 1128. 
Glosso graptus cf. hermani , T. S. Hall, Nos. 1130, 1132. 
Dicello graptus elegans, Carr., Nos. 1127, 1128. 
