In these notes it is my object to describe and figure some of the more imporant Chalk Polyzoa that have not yet been described, or have been described from material less complete than mine.

The mountain mass known as the Tarntaler Köpfe, situated about 20 kilometres south-east of Innsbruck, is distinctly isolated from other high ground in the vicinity. The peaks rise to heights approaching 2900 metres above sea-level. The geologic features above the level of 2000 metres are of special interest. The adjacent country is occupied by crystalline phyllites, chiefly displayed on the north, and highly foliated calcareous schists developed mostly on the south of the mountain.

A Considerable number of species of Tetrabelodont Mastodons are already known from various horizons and localities in the United States. Several of these from the Loup Fork deposits have been described by Cope, the best known being Tetrabelodon euhyphodon, T. campester, and T. productus. A fairly complete mandible recently acquired by the British Museum seems to indicate that yet another very distinct form existed contemporaneously with those just mentioned. This specimen, which forms the subject of the present note, was obtained from Mr. Sternberg, the well – known collector of fossil Vertebrates, who refers to it in his recently published work The Life of a Fossil Hunter (p. 123) under the name Trilophodon campester, Cope, from which, in spite of some similarity, I believe it to be very distinct.

A number of communications dealing with the origin and composition of the material commonly known as laterite have appeared in the Geological Magazine during the past few years. That of Dr. Maclaren is an especially valuable contribution to the literature of the subject, and I think few workers in the Tropics will be disposed to question the substantial accuracy of his conclusions. I shall not attempt, therefore, to discuss the general problem presented by the widespread occurrence of laterite deposits in tropical regions. The object of the present brief communication is merely to place on record a few observations made in another area.

Dr. W. F. Hume, Superinendent of the Geological Survey of Egypt has recently sent to the Geological Department of the British Museum, for determination and report, a few Pelecypod shells of fluviatile origin, directly associated with the marine genus Galeolaria, which he, in company with his colleagues Messrs. Crosthwaite and Murray, lately discovered in the ferruginous beds of the Nubian Sandstone Series of Southern Egypt.

The general appearance of this rock in thin section is of an interlocking framework of plagioclase, augite, and iron-ores, with micropegmatite occupying the interstices. The mutual relations of the felspar and augite vary considerably. The felspar may be entirely enclosed in the augite. In this case it is very basic and only faintly zoned. The most common relation is for the augite to enclose the terminations of the felspar laths, the sub-ophitic structure of Watts. But frequently idiomorphic crystals of augite are found partly or wholly enclosed in felspar. The latter is then more acid than the ophitic felspar, and is broadly zoned. These varying relations may frequently be found within the limits of a single slide.

At the Glen-Parva Brickworks, Wigston, near Leicester, is the finest section of the Rhætic beds that is to be seen in the Midlands. The large subcircular pit where the beds are displayd at once arrests the attention of the traveller on the adjacent railway as an excavation of more than usual size.

In his interesting and excellent Voyage of the Discovery Captain R. F. Scott speculates on the former ice conditions of the Ross Sea and the adjacent ice formations. He regards the views he expresses on this subject as only speculations, so I trust that I shall not be considered ungenerous if I attempt to express what I understand to be his views, and then subject them to criticism. It may be that I have misunderstood Captain Scott. If this should be the case the method of treatment proposed will prevent confusion.