Appendix on the Foraminifera from Bissex Hill and Bowmanston

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Abstract
Two years ago I received from Mr. G. F. Franks a large number of rock-specimens which he had collected from the Globigerina -marls and overlying limestones on Bissex Hill, and at his request I undertook to investigate them for foraminifera. The samples submitted were of small size, weighing from 1½ to 3 oz., and from these a fairly representative series was chosen, consisting of eight rock-specimens. One of the samples examined and reported on by the late Dr. H. B. Brady (that labelled ‘Rotten Earth, Bissex Hill’) corresponds with the specimens which are now described. The specimens that I have selected are friable; they can be broken down and washed without much difficulty; and, generally speaking, they yield about 50 per cent. of pure foraminifera, of which Globigerinæ form the greater part. Here and there the tests are encrusted with calcareous matrix, or remain cemented together, but many very perfect and finely-developed specimens of the various forms enumerated were selected from the washings. It will be seen from the subjoined list (p. 553) that all the species recorded by Dr. Brady from Bissex Hill have again occurred in the samples now described. Since the present study has resulted in the discovery of additional species of foraminifera, we are now ia a better position to form some idea of the geological age of the Bissex Hill Globigerina -marls. The previously-published list o[ Bissex Hill foraminifera ( Globigerina -marl) contained 32 species: this number is now increased to 120. From the combined

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