346 Notes and Comments. 
Yorkshire. .These plant-bearing strata are at the base of the 
Estuarine series, and may be probably regarded as Liassic in 
age and older than any of the previously known plant-beds. 
Among the specimens found are many beautifully preserved 
examples of two species of Thinnfeldia, a species of Ptilozamites, 
a species of Hausmannia, and a new conifer. A brief sketch 
of the flora has been given by the Secretary of the Committee 
in the Naturalist (p. 198, 1913). The occurrence of the plant- 
beds in the locality has been studied and proves to be very 
local. Some plant remains have been found in the Middle 
Estuarine beds of Eston Hill, one of the northern outliers of 
the Cleveland Hills. 
THE GRISTHORPE BED. 
The Gristhorpe bed continues to provide interesting forms. 
The excavations which have been carried on this year in Cayton 
and Gristhorpe Bays have resulted in the discovery of several 
new species. Among them is a new type of Ginkgoalian leaf, 
which has been described as Evetmophyllum pubescens, gen. et 
sp. nov.,* and this type has also been recognised at Whitby. 
A female flower of the Wuilliamsonia type, new to England 
and probably allied to the Wieldandiella angustifolia of Nathorst, 
has been found, also a new fern and some seeds and cones of 
new types. Many specimens of the rare species Beanza gracilis, 
Carr., Baiera Lindleyana, Schimp., and Cladotheca undans, 
L. and H., have been found, also some interesting forms of 
Czekanowskia. Material has also been obtained for the study 
of the cuticular structure of the Jurassic Cycadophyta, the re- 
sults of which will be published shortly.’ 
PREHISTORIC HORSES. 
Dr. A. Irving read some notes on Prehistoric Horse 
Remains from the Stort Valley. He stated :—‘ The present 
communication is a sequel to that made to Section H at the 
Portsmouth Meeting, 1911. Teeth and limb bones have since 
come to hand which fall into two series: (1) those of a horse 
of the Stortford-Grimaldi-Starnberg type; (2) those which 
answer to the “ Solutrean’”’ (Equus robustus) type of Professor 
J. C. Ewart. They have been found for the most part in and 
under the bottom of the “ Rubble-Drift”’ of the valley, as 
that has been laid open in a continuous trench (3 feet 9 inches 
to 4 feet in depth) across the valley of the Stort nearly a mile 
and a half long for the purpose of laying down a new water- 
main. Others have been found in the excavation which was 
carried down to 4 feet below the present bed of the River 
Stort into the solid peat, for the foundation of a pier-wall in 
widening the bridge at the side of the old Town Mill. These 
are supplemented by remains from Braintree collected by the 
* Proceedings Cambridge Philosophical Society, p. 256, 1913. 
Naturalist, 
