312 MEETING OF THE BRITISH ASSOCIATION. 
This is evident from the great variety of plants which the specimens 
exhibit. Although the amount of material obtained from Atanekerdluk 
is of small extent compared with that which has come from the 
Swiss localities, yet many of the slabs contain four or five species, and 
in one instance even eleven. Atanekerdluk has been only twice 
visited, so that we have got only a glimpse of the treasures buried 
there, and which await a more careful search. At Disco and Hare 
Island there are extensive beds of brown coal, in whose neighbourhood 
we may fairly expect to find fossil plants. In fact, Professor Grefpech 
mentions three species from Eook (?) in lat. 70° N., Pecopteris borealis, 
Sequoia Langsdorfi, and Zamites arcticus, which, strange to say, he 
has described (in his * Jahrbuch für Mineralogie,’ 1866, p. 
(4.) The Flora of Atanekerdluk proves, without a doubt, that North 
Greenland, in the Miocene Epoch, had a climate much warmer than its 
present one. The difference must have been 16° 
Professor Heer discusses at considerable length this proposition. 
He says that the evidence from Greenland gives a final answer to those 
who objected to the conclusions as to the Miocene climate of Europe 
drawn by him on a former occasion. It is quite impossible that the 
trees found at Atanekerdluk could ever have flourished there if the 
temperature were not far higher than it is at present. This is clear, 
firstly from many of the species of which we find the nearest living re- 
presentative 10° or even 20° of latitude to the south of the locality in 
question. Some of the specimens are quite peculiar, and their relation- 
ship to other forms is as yet in doubt. these the most important 
are a Daphnogene (D. Kanii), the genus MacClintockia, and a Zamites. 
The Daphnogene had large, thick, leathery leaves, and was probably 
evergreen. MacClintockia, a new genus, comprises certain specimens 
belonging, perhaps, to the Proteacee. Zamites is also new. Inas- 
much as we know no existing analogues for these plants, we cannot 
w accurate conclusions as to the climatal conditions in which they 
flourished. It is, however, quite certain that they never could have 
borne a low temperature. 
If, now, we look at those species which we may consider as possess- 
ing living representatives, we shall find that, on an average, the high- 
est limit attainable by them, even under artificial culture, lies at least 
is, however, does not give a fair view of the 
circumstances of the case. The trees at Atanekerdluk were not all at 
