4.11. 
THE GEOLOGIST. 
the sanif! period at Woohvieli a much more varied series of deposits was going 
on ; advauees and recessions of tlie sea causing the pebble-beds (containing 
sliells, mostly waterworn, having been wiishcd from inland) and bands of dif- 
ferent coloured sands with shells, some of wiiieh having their valves closed 
show these sands to have been their former habitat. In the pebble-bcd (4) I 
have found many shells of Cyrena, perforated by boring-mollusks — such as the 
Buceinum and Purpura ; and after searching for some time I was rewarded by 
finding a few Buecina, not at all waterworn, in fact very perfect, proving that 
they also had died where they are now found, their remains lying buried beside 
those of their victims. Tliese shells also show the preponderance of salt-water 
during the formation of tliis deposit. 
Land about Peekliam now being in request for building-purposes, we sliall 
not long have an opportunity of examining the strata ni that locality. — 
Edmund Jones, Islington. 
Mineral Manure in the Greensand. — Sir, — Having now, for the first 
time, come in jiossession of The Geologist, and finding it to be a first-rate 
journal for intelligence both for the tyro and the professor of this noble science, 
I beg leave to ask the following query. I have lately either lieard or seen in 
print that the Ilev. P. B. Brodie, F.G.S., of Rowington, near Warwick, had dis- 
covered a manure in the green-sand formation which underlies the cludk, 
that, if I recollect correctly the statement, had fertilizmg properties equal to 
coprolites. If this be in any way true, I should feel extremely obliged if this 
intelligent reverend gentleman would connnuiucate to The Geologist the way 
in which it was detected, and the means whereby it may be procured with 
pecuniary advantage to agriculture ? — Yours faithfully, Bobert Mortimer, 
Fimbcr. — There exists, both in the Lower Greensand and the Ujjper Green- 
sand, very generally througliout both England and France, consideraole beds of 
nodules of phosphate of lime, perfectly fit for the manufacture of su])er- 
]ihos])!iate, &c., for agricultural purposes. These beds have been well known 
to geologists for many years, and have been frequently pointed out in the 
vicinity of Boulogne, of Havre, of Folkestone, of Farnhara, in various pai-ts of 
Sussex, in the Isle of Wight, and Dorsetsliire, &c., by Mr. J. C. Nesbit, Pro- 
fessor Morris, the late Dr. Buekland, and myself. Dr. Fitton also noted their 
occurrence at Folkestone as far back as 1836. In Cambridgeshire those of 
the Upper Greensand have long been profitably and extensively worked for agri- 
cultural purposes. Wherever the Lower Chalk, Gault, and Greensand exist, 
these beds have only to be looked for to be found in greater or less force. 
Beds of phosphatic nodules also occur in the Kimmeridge-clay, as well as in 
other deposits. 
We are not aware of the particular instance pointed out by Mr. Brodie, but 
doubtless that gentleman, an early and respected correspondent of our journal, 
will respond to Mr. Mortimer's question in our pages. 
The nodules from the Gault, as also those from the Lower Greensand at 
Folkestone contain from lO to 45 per cent, of phosphate. Those of the Upi)er 
Greensand of that place are very excellent in quality, but small in size ; tiie 
vein also is very thin, and consequently not profitable for working. The stratum 
of nodules at the junction of the Gault and Lower Greensand is there from 
eight inches to twenty inches thick, but rather sandy. — Ed. Geol. 
TiiK Pal/Eontografhical Society. — Dear Sir, — Has the Palsconto- 
graphical Society broken up? I see no mention of them in "Kent's Literary Year- 
Book." Who publishes or has published their monographs ; and what is the 
cost of them? — Yours truly, G. Fowler, Derby. — Tlie Palaeontographical Society 
is, we are ha])py to say, not defunct, but if rumour may be trusted, its tem- 
porary obscurity is caused by the ])olitcness of Dr. Bowerbank in waiting for 
Professor Owen. It would however, we think, be far better both for tlie 
