GO 
liad no time until now to go over the collection more carefully. The speci- 
mens sent came from the Mersey Coal-field and from the Jerusalem Basin, 
therefore from two very different horizons. 
(«) Prom the Mersey beds I recognized the following : — 
Phyllotheca australis , Bgt. (This is the true form, as it occurs in 
the Newcastle beds, New South Wales.) 
Glossopteris communis, Peistrn. 
„ Brownian a, Brgt. 
,, spathulato-cordata, Peistrn. 
„ reticulum , Dana. 
Gangamopleris eg clop t oroides, Peistrn. 
,, ,, var. subauriculata, Peistrn. 
„ „ var. attenuate, Peistrn. 
,, anguslifolia, M‘Coy. 
No gger ath iopsis Hislopi, Peistrn. 
Squamae gymnospermarum. 
Samaropsis sp. (?) (winged seeds). 
(b) Prom the Jerusalem Basin I could determine : — - 
Thinnfeldia odontopteroides, Morr. sp. 
Alethopleris australis, Morr. sp. 
Summary Review of the Plant-bearing Sirota in Tasmania, and 
their Age. 
Prom the foregoing literary material I think the following sequence 
of strata can be drawn up. 
1. Marine and Coal-bearing Series. — This consists (see Nos. 8-11) of 
various strata, by Tasmanian writers distinguished in ascending order, as— 
(a) Lower Marine Beds. 
( b ) Lower Coal Measures. 
(c) Tasmanitc Beds. 
(d) Upper Marine Beds. 
This division has apparently been made before the fossils at Porter’s 
Hill, near Hobart, were discovered, which, as can be seen from Mr. Johnston’s 
description (No. 11), arc identical with those of the Lower Coal Measures on 
