Notes and Com7nenis. 227 



fauna of Britain. ' It is the only Pliocene cave yet discovered 

 in Europe, and is the only evidence as yet available of the 

 existence of the Upper Pliocene bone-caves, which, from the 

 nature of the case, must have been as abundant in Europe as 

 those of the succeeding^ Pleistocene Ag-e. From this point of 

 view it affords a striking" illustration of the fragfmentary nature 

 of the g"eolog"ical record, and of the general effect of denudation 

 on the surface of the land.' The specimens are deposited in 

 the Manchester Museum. 



A NEW YORKSHIRE FOSSIL. 



In the same journal Mr. A. C. Seward describes an addition 

 to the Mesozoic flora under the above name. Among-st a collec- 

 tion of plants sent to the author by the Rev. J. Hawell, of 

 Jng^lebv Greenhow, a few frag"ments of Dictyozamites were 

 detected. They were collected from a bed of ironstone on the 

 northern face of the Upleatham outlier, near Marske-by-the-Sea, 

 Yorkshire. I'he plant-bed from which the remains were found 

 is low down in the Estuarine Series, and is probably of Lower 

 Estuarine Ag'e. The remains proved to represent a new species, 

 and were named after their discoverer. The find is of particular 

 interest also as it proves the occurrence in the Jurassic plant- 

 beds of Yorkshire of a g'enus previously supposed to be confined 

 to Japah, India, and Bornholm. The specimens are to be 

 deposited in the British Museum. 



THE YORKSHIRE CHALK. 

 A paper of great interest to Yorkshire g-eolog'ists was 

 recently read before the Geolog'ists' Association of London by 

 Dr. A. W. Rowe, of Marg-ate. The author dealt with what he 

 called the white chalk of Flamborough Head — that is to say, 

 with all the chalk above the Belemnitella plena marls exposed 

 on the coast between Speeton and Bridling-ton. He spoke of 

 the special difficulties presented by the chalk of Yorkshire to 

 field-workers, such as its extreme hardness, the scarcity and 

 poorness of its fossils, and the inaccessibility of some of the 

 most important sections. But the chief interest of the paper 

 consisted in the attempt to show that the mass of Yorkshire 

 chalk is divisable, by means of its contained org"anic remains, 

 into definite beds or zones, similar to those previously worked 

 out by the author in the Upper Cretaceous rocks of Kent, Dorset, 

 and Devon. The lecture was illustrated by photo-lantern slides, 

 and by a model of the district on a scale of six inches to the 

 mile and ono. inch to 100 feet, which had been specially con- 

 structed by Mr. C. Davies Sherborn. This model, it was 



1903 July I. 



