THE 
GEOLOGICAL MAGAZINE. 
NEW i *SERIES: “DECADE “Ill. VOENN: 
No. V.—MAY, 1888. 
nee als Ses NAc AS tae ley ls @ ae Se 
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I1.—On roe Mo.3uusca oF THE PLEISTOCENE GRAVELS IN THE 
NEIGHBOURHOOD OF CAMBRIDGE. 
By Mrs. McKenny Hucuss. 
(| ie site of Barnwell Abbey has long been excavated for gravel. 
The pits have been easily accessible to collectors, and have for 
many years yielded large numbers of Mammalian bones, Mollusca, 
and a few plant-remains. 
These gravels were noticed by the Rev. P. B. Brodie and Prof. 
Sedgwick in 1838.1. Prof. Seeley gave a sketch of them in the 
Q. J. G. 8. 1866, in which there was a list of the land and fresh- 
water shells drawn up by Mr. Dewick. They were described by 
Mr. Jukes-Browne in his essay on the Post-Tertiary deposits of 
Cambridgeshire, 1878, and in the Memoir of the Geological Survey.’ 
A list of the species preserved in the Woodwardian Museum was 
given by Prof. Hughes in the Gronocican Macazine in 1883. 
Exact references to some of these papers and to others in which the 
deposits are mentioned will be found in Mr. Whitaker’s list of works 
on the Geology of Cambridgeshire, privately printed for the Wood- 
wardian Museum in 1873, and reissued with the Geological Survey 
Memoir above referred to. <A list of shells from the Barnwell Gravel 
is given by Dollfus.° 
Whenever any fresh excavations are made in this district, new 
evidence is generally obtained as to the relations of beds, and the 
distribution of the life of the period; and it seems desirable to place 
on record at once any additional facts observed in deposits which are 
being entirely removed, such as the Barnwell Abbey gravel, and 
to call attention to any hitherto undescribed sections, such as those 
near Barnwell Station, at Grantchester, or in the pits west of 
Barrington Green. 
Within the last few years Barnwell Abbey has been acquired by 
Mr. Sturton, who has laid out the ground in building plots, having 
previously removed almost the whole of the surface gravel. Mr. 
Sturton has with great liberality presented to the University what 
remained of the old Abbey and a piece of the ground around it, and 
has offered every facility to geologists for examining the sections 
during the progress of the work. Thus an exceptional opportunity 
1 Trans. Camb. Phil. Soc. vol. viii. 1844, part i. p. 138. 
2 Explanation of Sheet 51 S.W. 1881. 
3 Le Terrain Quaternaire d’Ostende, etc., Bruxelles, 1884. 
DECADE III.—VOL. ¥.—NO. V. 13 
