Foraminifera of the Gault of Folkestone. By F. Chapman. 19 
APPENDIX If. 
Previous Work on the Foraminifera found in the Gault of 
England and elsewhere. 
For our knowledge of the Foraminifera of the Gault of England, we 
are in the first place indebted to the work of Prof. A. E. Reuss * who 
gave, in his monograph on the Foraminifera of the Hils and Gault, a 
supplement on these organisms from Folkestone.! His study was the 
result of an examination of a sample of clay which Prof, (then Mr.) 
T. Rupert Jones had sent for the purpose. In this supplement dealing 
with Folkestone, Dr. Reuss enumerated 39 species, and compared them 
in detail with the Foraminifera obtained from similar and older strata 
(Albian and Aptian) in North Germany. After deducting 4 unnamed 
forms and 11 newly described species; of the remaining 24 Reuss found 
19 (or nearly 80 per cent.) common to the Folkestone Gault and the 
Minimus - clay of North Germany, with which latter formation there is 
most agreement in the microzoic contents. Of the 19 species from the 
Mhiimus-cl&y, Reuss found 5 peculiar to that stratum, 2 in that and the 
beds immediately underlying it, and 1 restricted to the Minimus - clay 
and the Flammemnergel. Nine of the species passed into the Upper 
Oretaceous series. 
From time to time lists of Gault Foraminifera have appeared, 
largely based upon the researches of Prof. T. Rupert Jones, and further 
augmented by Reuss’s list.* 
The Foraminifera of the Gault from Meux’s well-boring, Tottenham 
Court Road, London, have been enumerated by Chas. Moore, and 31 
species are recorded. § 
As regards the Red Chalk of Yorkshire, Norfolk, and Lincolnshire, 
the Foraminifera have been carefully worked out by Messrs. Burrows, 
Sherborn, and Bailey, || and they will presently be compared with the 
Gault facies. 
From France we have an elaborate and valuable monograph on the 
Foraminifera of the Albian stage of Montcley in the Department of 
Doubs, by M. Berthelin.lf This author described many new forms, 
most of which I have since met with in the Gault of Folkestone. Alto- 
gether there are 98 species enumerated. 
For the Gault beds of Northern Germany we have the very complete 
* ‘ Die Foraminiferen des Norddeutschen Hils imd Gault,’ Sitzungsb. d. k. 
Ak. Wiss. Wien, vol. xlvi. Abth. 1, 1862, pp. 5-100, pis. i.-xiii. 
t Op. cit., pp. 88-95, pi. xii. -figs. 5-14 and pi. xiii. 
x See Morris’ ‘ Catalogue of British Fossils,’ 2nd ed., 1854, pp. 32-44, for references 
to English Gault Foraminifera, compiled by T. K. Jones. Also ‘Memoir on the 
Weald,’ Topley, 1875, Geol. Surv. Mem., pp. 433 and 434, for lists of Gault Fora- 
minifera furnished by Prof. T. B. Jones. 
§ Quart. Journ. Geol. Soc., vol. xxxiv. (1878) pp. 917-8. 
[| Journ. K. Micr. Soc. for 1890, pp. 549-66, pis. viii.— xi. 
% ‘Memoire sur les Foraminiferes Fossiles de l’Etage Albien de Montcley 
(Doubs),’ Mem. Soc. Geol. France, ser. 3, vol. i. No. 5, 1880, pp. 1-84, pis. i.-iv. 
(xxiv.-xxvii.) 
c 2 
