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bisufarcinata, Schlot., and Rhyn. Thurmanni, Voltz., from the lower cal- 
careous grit of Filey, Yorkshire coast ; I Valdheimia umbonella , Lamarck, 
from the Iielloway rock of Scarborough ; Terebratula Eudesii , Oppel, and 
Terebratula ventricosa, Yieten, from the inferior oolite of Cheltenham ; 
and Terebratula Ferryi , Des., from the inferior oolite of Dorsetshire. 
Carboniferous Conifer's . — Professor J. W. Dawson writes as follows from 
Montreal to “ Silliman’s American Journal Little attention seems as 
yet to have been given to the remains of coniferous trees found in the 
carboniferous rocks of the United States. In Nova Scotia several species 
are known, and are to some extent characteristic of definite horizons. In 
the carboniferous sandstones of the United States such remains seem to be 
frequent ; but I have seen no detailed account of them, and the only well 
characterized specimens which have come into my hands are portions of two 
trees from Ohio kindly sent to me by Dr. Newberry, and a very finely pre- 
served fragment from Mazon, Grundy Co,, Illinois. Both of these show 
the characteristic structure of Dadoxylon (Unger), Araucaroxylon of 
Schimper’s recent work, and are closely allied to D. matermrium, the 
common species of the upper and middle coal formations of Nova Scotia. 
The specimen from Illinois is probably identical with that species. One of 
these from Ohio presents some peculiarities in the structure of the medullary 
rays, which may indicate a distinct species. The subject is deserving of the 
attention of microscopists in the coal districts, as there can be little doubt 
that several interesting species remain to be discovered, and other kinds of 
structures ; as for example the curious Dictyoxylon of Williamson, found 
also in Nova Scotia, would very possibly reward patient slicing of trunks 
showing structure. The Devonian has also treasures of the same kind. In 
the United States it has already afforded Dadoxylon Haiti from New York, 
and D. Newberryi from Ohio, besides the curious Ormoxylon Erianium. No 
doubt other species remain to be discovered, especially in the Upper and 
Middle Devonian. The writer of this note would willingly correspond with 
anyone engaged in such researches, as he has now under examination a 
number of specimens from different parts of British America, and would be 
glad to have opportunities of comparison with those of the United States. 
A Query as to the Bones of the Hadrosaurus : Clavicles or Ischia f — In the 
Deports just issued of the Academy of Nat. Science, Philadelphia, it is said 
that Professor B. Waterhouse Hawkins referred to his remarks of last summer 
regarding the position of the so-called clavicles of Hadrosaurus. Having 
drawn a figure of the skeleton, he explained the impossibility of disposing 
of those bones in the position of clavicles. A comparison of the skeleton 
of Hadrosaurus with that of the ostrich was made, and the conclusion 
drawn that the ischiatic position assigned to the bones in question in the 
restoration made for the Smithsonian Institution was unwarranted. Prof. 
Cope stated that he had lately obtained a metatarsal bone of Lcelajjs, which 
confirmed the views of Professor Hawkins, as expressed in his restoration of 
that animal made during his engagement at the Central Park, New York. 
Nomenclature of the Drift . — In reference to this subject Mr. G. H. 
Kinahan has written a letter to the “ Geological Magazine,” in which 
he gives an account of the Irish gravels. He says that as to those, 
they have never been systematically examined or classed. 11 We have 
