Nansen says: "Through Jackson's kindness and Koettlitz's valuable assistance, I was enabled to make a collection of fossils and rocks from the Jurassic deposits of this locality."

"(Koettlitz) took me to places where, before my arrival, he had already found fossils, or had observed anything of importance. Had it not been for him I should certainly not have been able to do what little I did during the few days at my disposal. I agree with Koettlitz on all essential points, and have nothing new of importance to add to what he has already said."

As Nansen elsewhere remarks, the memoirs of Pompeckj and Nathorst supplement the papers of Koettlitz, Newton and Teall, which appeared in the Quarterly Journal of the Geological Society, 1897, pp. 477-519, and 1898, pp. 620-651.

Pompeckj describes fully the various fossils, illustrates them with wealth of detail, discusses their stratigraphical relations, and outlines the paleographical history of Franz Josef Land.

Of the twenty-six species collected by Nansen no less than seventeen are new as compared with the Jackson-Harmsworth collection, which contains five species lacking to Nansen. There are representatives of single species only of echinoderms, vermes and gastropods, the scarcity of the last named being generally characteristic of the Jurassic fauna of the arctic regions, whether in Siberia, Greenland, or Arctic America. On the other hand, at Cape Flora the cephalopods and the lamellibranchs predominate very largely. This fact makes most notable the absence of the lamellibranch genus Aucella, with all other forms that are especially characteristic of the higher Jura.

The following new species have been determined by Pompeckj: Pseudomonotis Jacksoni, an ornamented shell of a remarkably large Aviculid form. Macrocephalites Koettlitzi, a shell with a very narrow umbilicus and almost completely encircling whorls. Cadoceras Nanseni, an ammonite showing a flat disc-like growth, with moderately thick whorls of which cross-sections are nearly elliptical. Another ammonite may possibly be a variety of C. Nanseni, but Pompeckj considers that it is a separate species owing to its wider umbilicus, less pronounced involution and somewhat asymmetrical lobe-line.

Pompeckj's outline of the paleontographical history of Franz Josef Land is worthy of careful consideration by all interested in this department of science, although many may differ from some of the conclusions reached by him. Commenting on the stratigraphical studies of Prof. E. T. Newton, Pompeckj states that his own investigations compel him to differ materially from the inferences drawn and theories advanced by that scientist.

Pompeckj says: "The occurrence of these three genera of Ammonites proves that the marine fauna of Cape Flora contain representatives of

the Callovian. More recent marine horizons have certainly not been formed at Cape Flora, as far as I can judge from the collection of fossils before me. The Oxfordian and all the more recent Jurassic

horizons do not occur as marine deposits at Cape Flora."

He finds species pertaining to the Lower Bajocian, Lower, Middle and Upper Callovian horizons. It is most interesting to note that only one other part of the arctic regions, Prince Patrick Island, Parry Archipelago, has produced fossils, described by Haughton as Lias, that are certainly older than the Callovian. It is, however, recognized as possible that Lundgreen's fossils from East Greenland may form another exception.

Pompeckj points out that while the Bajocian fauna of Cape Flora is without analogy in the arctic regions, it nevertheless presents distinct affinities to the Central European Jura, and especially resembles the Russian Callovian.

Moreover, this Jurrassic collection from Cape Flora is of special importance in outlining the geographic distribution of that system. Pompeckj adds: "Hence the existence of a Bajocian sea in the north of the Eurasian Jura continent is proved beyond all doubt. As early as the Bajocian period, there existed a Shetland Straits, which separated the Eurasian continent, existing through the Lias period until the end of the Bathonian, from the nearctic Jura continent."

The comments relative to the transition of Nova Zembla, Spitzbergen, Franz-Josef Land, and possibly Alaska, from land to sea and sea to land, are of marked interest, indicating as they do that large areas of polar regions were exposed in the mesozoic period to repeated and very considerable oscillations of the sea level.

The more interesting of the Jurassic fossils, found at Cape Flora, are shown in the accompanying illustration. Cadocera Nanseni (n. sp.), 1, 2, 3, 5, 6. Cadoceras, sp. ex. aff. Cad. Nanseni (n. sp.), 4. Cadoceras Tchefkini, d'Orb, 7. Cadoceras, sp. indet., 8. Quenstedoceras vertumnum, Sintzow, 9. Cadoceras Frearsi, d'Orb, 10. Macrocephalites, 11. Macrocephalites Koettlitzi, n. sp., 12.

The collections of fossil plants, made by Nansen in Franz Josef Land through the courtesy of the Jackson-Harmsworth expedition, are of scientific value as indicating the fossil Jurassic flora of Franz Josef Land as compared with that of Spitzbergen. These collections fill in a not inconsiderable gap in the Arctic regions, and Nathorst's investigations serve to confirm the opinions and statements made by Professor Heer, whose five volumes of Flora Fossilis Arctica constitute a monumental work. As is well known, research has established the fact that at one time Spitzbergen was covered with a luxuriant miocene vegetationcypresses, birches, sequoiæ, oaks and planes. It moreover appears that this growth was coincident with the period when Spitzbergen, Green

land, Franz Josef Land and Nova Zembla experienced a continental climate.

As fossil collections accumulate, one appreciates more and more the masterly manner in which Heer summed up the results of polar exploration as regards Arctic vegetable paleontology. He was the first to

present to the world a clear idea of the vegetation of the Cretaceous land, scarcely known to science until elucidated by him. It developed that in Heer's time, among the fossil plants found in Spitzbergen alone were 7 ginkos, 8 pines, a short bamboo, 7 poplars, 3 maples and a fossil strawberry.

Dr. Nansen was fortunate in securing the co-operation of Prof. A. G. Nathorst in the examination of the fossil plants collected in Franz Josef Land, as he has devoted much time to the flora, present and past, of various portions of the Arctic regions, especially Spitzbergen and King Charles Land. Nathorst had the advantage of the notes of Newton, J. H. Steele and R. Curtis on the fossils of Franz Josef Land, published in the Quarterly Journal of Geological Science, London, vols. 53-54, 1897-1898.

Most unfortunately, the fossils were very fragmentary, the leaves in themselves small and often indistinguishable in color from the rock, so that their examination was made almost entirely under the magnifying lens. While the organic substance of the plants was sometimes still to be seen in a soft, brownish variety of rock, yet the harder yellowish varieties offered only impressions, or cavities, their organic substance having entirely disappeared. In cross fractures there were sometimes. cavities which were complete transverse sections of coniferous leaves.

There were twenty-nine species, of which the entire number are coniferous except one fungus, one fern, two palms and one uncertain.

Nathorst says: "The plant-bearing strata of Franz Josef Land, which are yet known to us, all belong, with the exception of those from Cook's Rock and Cape Stephen, the age of which is still uncertain, to the upper Jurassic, or the transition beds to the cretaceous, while as yet no tertiary strata have been discovered."

In geological age, while the Franz Josef flora resembles most the previously known Jurassic floras of Siberia and Spitzbergen, yet Nathorst considers the geological age different, and naturally places it between the two, it being evidently younger than that of Siberia.

It is interesting to note that Doctor Koettlitz found in an isolated basalt nunatak (rock or hill protruding from a glacier) fossil plants similar to those found by himself and Nansen on the north side of Cape Flora. These nunatak plants, which Koettlitz believed to be in situ, are identified by Nathorst as Upper Jurassic, and came from an elevation variously estimated as from six hundred to seven hundred and fifty feet above the sea.

Nansen agrees with Koettlitz in believing that tree-trunks found by them, charred into charcoal or partly silicified, chiefly belonged to conifers growing on the soil over which basalt flows were discharged during the Upper Jurassic or Lower Cretaceous age, and that they have been charred by a flowing mass of lava that overwhelmed them.

These fossil plants tell the story of tremendous physical changes which have produced very important modifications in climatic conditions in the Arctic regions. The changes in the types of vegetable life are apparently as extensive in high as in low latitudes. The lower cretaceous flora is almost tropical, as is shown by the predominating forms of this vegetation. Carboniferous formations obtain extensively in the Arctic regions, as they occur in the Parry Archipelago, Spitzbergen and in Siberia. During the carboniferous age there was a great extent of land near the North Pole closely resembling that of the temperate latitude of the same period, as is shown by the small number of fossil plants that are peculiar to the Arctic regions. In the tertiary period miocene flora flourished in Spitzbergen, where even the lime, the juniper and poplars have been found near latitude 79 N. Then also throve sequoias, which closely resemble trees growing in the southern part of the United States. The miocene flora gives evidence of a very great contrast between the climatic conditions at that epoch between Europe and the Arctic regions.

The cretaceous flora throws important light on the changes of climate in the Arctic regions, and, as has been pointed out, the tropical forms predominate in the vegetation of the Lower Cretaceous flora. Heer's prediction that the plants found on the west coast of Spitzbergen would also be found on the East Greenland coast has been fully verified. Miocene plants have been found from Spitzbergen westward through Iceland and Greenland to Banks Land and in the Parry Archipelago, and it is interesting to note that more than one fourth of the Arctic plants are common to the miocene of Europe; in Greenland and on McKenzie the percentage is nearly one half.

In all probability, the paper which is of the highest popular interest is the account of the birds by Robert Collet and Dr. Nansen. The full notes regarding Arctic birds testify fully to the fact that the observers had in view the principal points of ornithological importance. These comprise not only a mere record of the presence or absence of certain species, but also additional observations regarding them in their Arctic habitat.

Certainly the reproach can not be brought against the expedition of the Fram, which has obtained in the case of many Arctic expeditions, that it has added nothing to ornithological Arctic data.

The account of the birds, prepared by Mr. Robert Collet, has been compiled from the various journals of the expeditionary force, supplemented by verbal comments of Nansen. The memoir contains such specific data as enable students to determine not only the general character of the avifauna as one moves northward in the Siberian ocean, but also the arrival and departure of the migrants and the presence of stragglers. Among the birds of special interest which were observed are