NOTES AND QUERIES. 
115 
©four most eminent Tertiary geologists ; but, lest the question should appear to be 
neglected, we have inserted here what is generally known to geologists on the sub- 
ject. 
A CoRRKSPONDENT, in the last number (page 80), asks some questions on supposed 
mammalian remains in the Lias. We are obliged by the offer of sketches, which 
we shall be glad to receive. As far as can be judged from what we know of 
other mammalian-like bones which have been rolled down from the storm-beaten 
cliffs of the Dorsetshire coast, it is probable that geologists will have in tliese 
fossils the remains of great Megalosaurian reptiles or Dinosaurs similar to those 
■which are already so well known in the Oolite and Wealden formations — some 
members of this family having been found even as low down in the series as the 
Trias at Wurtemburg. From their latter position we need not be surprised at their 
occurrence in the Lias, which was probably the deep-sea fDrmation fringing the 
lands which supplied, in successive ages, the remains of this interesting fauiily 
of reptiles, the chief characters of which may be studied in Mr. Waterhouse 
Hawkins's magnificent models at the Crystal Palace. 
T.V., Durham (see page 80). — Durham is one of the finest places in the 
kingdom for a working geologist. The " Marl Slate " of the Magnesian Limestone 
series is especially to be noted as full of splendid and almost perfect fish. Its 
outcrop will be found at Ferry Hill, and many other places in the neighbourhood ; 
and it is often cut through in the coal-workings. The whole Permian group of 
the north of England is of the highest geological interest, and is divided by 
Professor King into six divisions. 1st. Crystalline earthy compact, and oolitic lime- 
stones. 2nd. Brecciated and pseudo-brecciated limestones. 3rd. Fossiliferous lime- 
stone. 4th. Compact limestone. 5th. Marl-slate. 6th. Various-coloui-ed sandstones. 
Passing from Bolden to the coast, the series is crossed in ascending order, the lowest 
member (6) occuring on the west of Down Hill ; then the marl-slate (5) is seen, 
overlaid by several beds of brown-coloured limestone (4). The beds of light- 
coloured limestone (3 ), abounding in fossils, occur at Hylton North Farm, and 
Southwick Lane House ; while in the west quarry at Southwick, the brecciated 
and pseudo-brecciated deposits (2) arc displayed — the superimposed crystalline aud 
other limestones being extensively worked in the FuUwell quarries, and con- 
tinuously displayed to the shores of the German Ocean. The great 90-fathom dyke 
is a physical phenomenon well worthy of note ; and Cullercoats Bay, the railway- 
cutting at Tiirislington (jap, Tunstall Hill, Ryhope, Hartlepool, and Tynemouth 
are places well known to geologists. We have replied as fully as our columns 
will permit ; and we must refer T V., if he desires more detailed information, to 
the monograph of Professor W. King, in the publications of the Palajonto- 
graphical Society ; the papers by Mr. R. Howse in the " Annals of Natural 
History," vol. xi., 2nd series j and the remarks by Mr Kirkby in the Quarterly 
Journal of the Geological Society, vol. xiii. The labours and writings of the 
Rev. Professor Sedgwick aud of Sir Roderick I. Murchisonare also of the highest 
importance in the study of the Permian deposits. 
Vekbdm Sap. — The publication of an illustrated glossary or dictionary of 
geological scientific words and terms was proposed by the present Editor to the 
late proprietor, but the idea was not entertained. This matter is now again 
under consideration, and will most probably be carried out. Some time, however, 
must elapse before its practical execution can be commenced— the mere manual 
labour of writing out and arranging in alphabetical order the ' numerous 
expressions aud technicalities of a science being by no means a trifling operation. 
In the interim of its preparation, questions from correspondents and subscribers 
will be freely and readily replied to ; and our subscribers and readers would do 
well to note down such words and terms as they are desirous of having explained, 
or which they think it advantageous to notice for the sake of others. Such 
communications should be marked " Glossary," to save us the expense of printing 
special answers. 
J. H. W., Nottingham.—" To the Editor of the Geologist.— Dear Sir,— I should 
be greatly served if you will inform me upon the following questions : To what 
M 2 
