The progress of the study in the department of vertebrate palaeontology made the problem of a new classification of the vertebrate group quite up to data. Taking this into consideration the writer gives an account of the views of the Swedish scientist G. Säve-Söderbergh, which are expressed in his article "Some points of view concerning the evolution of the Vertebrates and the classification of this group", and in the table appended to it (see the Russian text). Whatever may be the inadequateness of the classification proposed by G. Säve-Söderbergh, it may give use, in the opinion of the author, to a fruitful discussion of the problem, it also points out its insufficiently studied regions and thus contributes to the solution of this problem.

In 1931 and 1935, I managed to get acquainted with the remains of Mosasauria from two different areas where they had not yet been observed and where their finding, in addition to paleontological interest, is of great stratigraphic interest. One find in the Pechora region was made by Prof. A. A. Chernov in 1930 in the light gray sandstones of the Lemva River, the left tributary of the Usa River, which flows into the Pechora from the right. An exact determination of the genus and species is not yet possible. It should only be noted that the highly elongated cylindrical shape of the vertebral body is similar to the shape of the caudal vertebrae of North American Mosasauria. The paleontological interest of the find is undoubted: it promises to provide new, more complete remains of the skeleton of Mosasauria, and stratigraphically reliably determines the Upper Cretaceous age of marine sediments on the eastern slope of the Middle Urals.

The present work by G. Säve-Söderbergh, despite its modest title: "Preliminary Note on Devonian Stegocephalians from East Greenland," presents the content of a very interesting study devoted to the description of the finds of the oldest Tetrapoda known to date. It should be said that the discovery of reliable remains of these in the Devonian had long been eagerly anticipated in the scientific world. The author was a participant in the Danish East Greenland Expedition of 1931, which worked under the leadership of Dr. Lauge Koch and discovered a fauna of coelacanths and other fishes in the Upper Devonian (layers of the Upper Red Sandstone in the Mont Celsius area on Ymer Island at 73°10' N and 23° W). The accuracy of the age determination is confirmed by the work of the renowned Swedish scholar E. Stensiö (see the article).