Mr. Damon of Weymouth having recently received a third consignment of fossil fishes and Fish-remains from the Devonian Rocks of Canada, an interesting selection has been made for the Edinburgh Museum, and I am thus enabled to contribute some additional notes regarding the palæozoic ichthyology of this region. The specimens were, as before, collected by Mr. Jex.

A number of restorations of dinosaurian reptiles have been recently made by the writer, based upon American specimens which he has personally investigated. Reduced figures of three of these restorations have already appeared in this Magazine; namely, Brontosaurus and Stegosaurus from the Jurassic, and Triceratops from, the Cretaceous. Three others of interest are given in the present Number; Anchisaurus from the Triassic, Ceratosaurus from the Jurassic, and Claosaurus from the Cretaceous.

The late Admiral Spratt, R.N., and Dr. John Murray, of the “Challenger” Expedition, have, in their brochures on Maltese Geology, made allusion en passant to the occurrence of chert nodules in the Globigerina limestones of the Maltese islands. Neither of these gentlemen, however, gave any details of the nature, mode of occurrence, or distribution of the concretions, an omission which was probably due to the restricted area of the horizon at which the nodules are found, and to the irregular and sparse manner in which thev are distributed.

Some four years ago I published in this MAGAZINE an analysis of the Fullers Earth of Nuffield, Surrey. The Nuffield samples were given to me by A. Sheridan, Esq., C.E. I now wish to record the analysis of a large bed of this clay at Rhiwlas, Vrongoch, near Bala, N. Wales. The beds are about 60 feet thick, and are upon the property of E. J. Lloyd Price, Esq. In this case also, the samples were sent to me by Mr. Sheridan. The two samples A and B are of somewhat different composition. B contains considerably more silicate of alumina and less alumina than A. A would of course, from a fuller's point of view, be the better earth of the two.

I am highly gratified that some of the difficult problems connected with the Mammoth and its surroundings, which have been too long ignored, are at last attracting something like adequate attention; and I regret that Mr. Jukes-Browne should withdraw from the controversy without, as it seems to me, doing justice to the cause he represents. In his concluding letter he adds nothing but a reference fo Mr. Clement Eeid and Mr. Horace B. Woodward, neither of whom need a vicarious spokesman. I wish he had been able to point to one well attested example to prove his case. I must again press upon him the fact that mere rhetoric is of no avail in this or any other scientific discussion. What we need is to be pointed to some example within our four seas of the occurrence of a land-surface dating from the Mammoth period underlaid by true drift.

The great abundance and good preservation of the remains of the American Mastodon have led to various restorations of the skeleton. The best known of these is that made by Prof. Richard Owen, in 1846, based upon a skeleton from Missouri, now in the British Museum. Another restoration was made a few years later by Dr. J. C. Warren, based mainly on a very perfect skeleton from Orange county, New York. This skeleton is now preserved in the Warren Museum in Boston. A third restoration was made by Prof. James Hall, from a skeleton found at Cohoes, New York, and now in the State Museum of Natural History, in Albany. These restorations are all of importance, and taken together have made clear to anatomists nearly all the essential features of the skeleton of this well-known species.