NOTES AND QUERIES. 
357 
Professor de Koninck, at Li6ge, and intend to be the bearer of some deeply interest- 
ing forms from this district, as well as two perfectly new crinoids just discovered in 
the greensand of the classical Iguanodon-quarry, at Maidstone, by W. H. Bensted, 
Esq., and which that gentleman, with the disinterested liberality of all 
true lovers of science, has placed at our disposal, to examine and describe. On 
this subject I would wish to promise your readers an early notice. — Yours very 
truly, Edwabd Wood, Richmond, Yorkshire." 
PaivATE CoLLKCTioN.— Exchange of Fossils. — " Sir, — I was glad to find, 
in your June number, that you proposed giving illustrations, &c., of all the 
British Fossils, as such an arrangement will be of advantage, both to myself, 
like your con espondent Amator Naturse, as well as more of your readers in 
this neighbourhood, that I am acquainted with. I have a good collection 
of fossils out of the mountain-limestone; but, owing to the more expensive 
books being beyond my reach, I am unable to arrange and classify them 
accurately. Were these named, having plenty of duplicates, I should be able to 
exchange, as I see from your advertisements and correspondents gentlemen 
are willing to do so, for named specimens. I may add that I shall be happy to 
show my collection to any brother geologist who may call upon yours, &c., Jno. 
Fkoggatt, Churchgate, Stockport." 
Geology of Hay (South Wales). — Sie, — "Every month I hail with sincere 
pleasure the arrival of the Geologist, and feel much affection for the sturdy old 
Mammoth which so appropriately adorns the corner, because he is the harbinger 
of a variety of new and interesting information which every lover of "the 
hammer " must be glad to obtain for the reasonable sum of one shilling. Like 
most enquirers, I am always happy to meet with a good deal of information in a 
small space, and therefore invariably in the first place digest the matter contained 
in that pre-eminently useful portion called "Notes and Queries," leaving the 
separate articles to be conned at leisure. Being a subscriber and an embryo 
geologist, perhaps I may trouble you with the following queries? 1. What por- 
tions of the Old Red Sandstone is it that abounds in this locality, and what 
fossils (if any) does it contain ? 2. Quantities of gravel abound in some of the 
valleys — a section 20 feet in depth, containing a large stone, probably half a ton 
or more in weight, being exposed not a quarter of a mile from Hay. Is this a 
portion of the boulder-drift ? 3. In my rambles I frequently meet with a dark 
brown sandstone filled with casts of minute shells, the two most conspicuous im- 
pressions being a small spiral one, about a quarter of a inch in length, and a 
bivalve, not unlike a Terebratula, only broader, and about half an inch long. The 
stone is always water-worn, and is found in abundance. I should be greatly 
obliged if you could say what the impressions are. — I am. Sir, your most obedient 
servant, Hay, South Wales." — To the south and east of Hay the cornstones, or 
calcareous middle portion of the Old Red of Herefordshire crops out. In the north- 
west, the lower portion, consisting of red marl and tilestones, comes out, resting 
on the Silurian rocks of Radnorshire. The cornstones should be examined for 
remains of Cephalaspis, and the other curious fishes and crustaceans of the Devonian, 
or Old Red period. The tUestones are likely beds for similar remains, together 
with Lingula: and some other small shells ; also plant-remains, such as have been 
found near Ludlow. 2. The gravels and boulders near Hay are of local origin, and 
not a portion of the great " northern drift." They are derived from the SUurian 
and Trappean rocks of the Radnorshire hills, and from the remains of some of the 
Old Red beds themselves. 3. The water-worn fragments of shelly rock referred 
to may possibly be portions of some of the fossiliferous lower tilestones, with 
Holopella, &c. 
Geology of Callander. — " Sir,— I should feel much obliged if you would 
inform me, whether the Old Red Sandstone in the neighbourhood of Callander, 
N.B., is fossiliferous ; and if so, I should be glad of some information as to the 
prevailing species to be found there. Perhaps some reader of the Geologist 
would kindly inform me. — Yours, J. R. Stockport." 
BiruMiNODS Shales of Scotland. — "Sib, — I should be obliged if any of your 
correspondents acquainted with the bituminous shales of Scotland, more especially 
