2. The _Atané_ series. These also are black shales with dark-coloured sandstones. They are best exposed at Upernavik and Waigat. Here dicotyledonous leaves abound, amounting to ninety species, or more than half the whole number of species found. The fossil plants resemble those of the Dakota series of the United States and the Dunvegan series of Canada, and the animal fossils indicate the horizon of the Fort Pierre or its lower part. They may be regarded as representing the lower part of the Upper Cretaceous. The genera _Populus_, _Myrica_, _Quercus_, _Ficus_, _Platanus_, _Sassafras_, _Laurus_, _Magnolia_, and _Liriodendron_ are among those represented in these beds, and the peculiar genera _Macclintockia_ and _Credneria_ are characteristic. The genus _Pinus_ is represented by five species, _Sequoia_ by five, and _Salisburia_ by two, with three of the allied genus _Baiera_. There are many ferns and cycads. 3. The _Patoot_ series. These are yellow and red shales, which seem to owe their colour to the spontaneous combustion of pyritous lignite, in the manner observed on the South Saskatchewan and the Mackenzie rivers. Their age is probably about that of the Fox-Hill group or Senonian, and the Upper Cretaceous of Vancouver Island, and they afford a large proportion of dicotyledonous leaves. The genera of dicotyledons are not dissimilar from those of Atané, but we now recognise _Betula_ and _Alnus_, _Comptonia_, _Planera_, _Sapotacites_, _Fraxinus_, _Viburnum_, _Cornus_, _Acer_, _Celastrus_, _Paliurus_, _Ceanothus_, _Zizyphus_, and _Cratægus_ as new genera of modern aspect. On the whole there have been found in all these beds 335 species, belonging to 60 families, of which 36 are dicotyledonous, and represent all the leading types of arborescent dicotyledons of the temperate latitudes. The flora is a warm temperate one, with some remarkable mixtures of sub-tropical forms, among which perhaps the most remarkable are _Kaidocarpum_ referred to the _Pandaneæ_, and such exogens as _Ficus_ and _Cinnamomum_. 2. Tertiary. 4. The _Unartok_ series. This is believed to be Eocene. It consists of sandstone, which appears on the shores of Disco Island, and possibly at some other places on the coast. The beds rest directly and apparently conformably on the Upper Cretaceous, and have afforded only eleven species of plants. _Magnolia_ is represented by two species, _Laurus_ by two, _Platanus_ by two, and one of these said to be identical with a species found by Lesquereux in the Laramie,[FR] _Viburnum_, _Juglans_, _Quercus_, each by one species; the ubiquitous _Sequoias_ by _S. Langsdorfii_. This is pretty clearly a Lower Laramie flora. [FR] _Viburnum marginatum_ of Lesquereux.