For the purposes of a memoir, about to be published by H.M. Geological Survey of England, on the Geology of parts of Norfolk, I have been for some time past engaged in a critical examination and revision of such lists of the so-called “Pre-Glacial Forest Bed” Vertebrata, as have appeared from time to time in various publications. And it is intended to publish the results of this work in detail, when figures of the more important specimens will be given, together with particulars of the reasons for the alterations and additions which it is deemed necessary to make. It seemed desirable, however, as some time must elapse before the entire work can be accomplished, to publish, as occasion serves, short notes of some of the changes about to be made; and it is hoped that these notes will not be without interest to the readers of this Magazine.

Over most of North-Western Europe the occurrence of river-terrace deposits containing Palæolithic implements has been long known, and the establishment of a sequence of forms among these implements has resulted from the researches of Continental, and especially of French archæologists. With the pioneer work the name of M. Boucher de Perthes, of Amiens, will always be associated. His was the task of convincing unwilling minds of the human workmanship of the ancient flint-weapons found in the gravel-pits of the Somme Valley. For the next great advance we owe a debt of gratitude to another French savant, the late Professor Victor Commont, for his life-work was the taking up of the researches of his predecessor and establishing the sequence of cultural types and their relative chronology.

There is a lead-zinc (with subsidiary copper) metallogenic province on each side of the Vale of Eden. To the east the veins of the Alston Block are found in Carboniferous rocks and a Hercynian age is the generally accepted date of the mineralization. To the west the veins lie in the Lower Palaeozoic rocks of the Lake District. Within the latter area ore-veins associated with the Shap Granite are, by common consent, regarded as of Caledonian age. But these apart, there is a regional mineralization in the Lake District, best developed in the northern part of that topographical unit, which has also been regarded as of Hercynian age.

The acute observation of the late Professor J Beete Jukes, combined J with his power of reasoning from Nature, and by Nature's laws, enabled him at once to be capable of explaining the relations of complicated strata, over which others might puzzle for months: neither was he unwilling to. impart his knowledge to others, for nothing seemed to give him greater pleasure than teaching and explaining away difficulties, by pointing out the similarity between the former and present agents at work fashioning the surface of our earth.

It is a noteworthy feature of the most ancient crystalline limestones that they are generally dolomitic, or at any rate frequently so. They often consist of practically pure dolomite; whilst associated with this in some cases is pure crystalline magnesite, which is very liable to be mistaken for saccharoidal dolomite.

Somewhat further to the west of Karsok, and about 50 feet higher up, occurs another similar stratum, containing a mass of graphite, so soft that it may be cut with a knife. This spot was not, however, accurately examined. A similar stratum of graphite imbedded in sand and clay occurs also at a very great height above the sea at Niakornet, but time did not admit of our visiting that spot.