410 
THE LAST DECADE. 
forms occurring on the steep hillsides of some of the Yorkshire Wold 
vallej's. They are quite distinct from any other form of earthworks 
or hillside ledges, and are usually found on slopes facing southwards. 
The author considers that these platforms were constructed for the 
purpose of erecting habitations, and cites instances described by Mr. 
Foote, of the Indian Geological Survey, in which similar pre-historic 
artificial terraces have been discovered in India. In both instances, 
though so widely separated, the terraces are accompanied by the dis- 
covery of flint implements. 
Mr. J. R. Dakyns contributed in 1879-80 two papers on the 
Glacial Beds in the neighbourhood of Bridlington. In the latter he 
describes a large number of sections of the glacial beds around Flam- 
borough Head. In the following year the same author read a paper 
on Flots. Flot is a term used by miners to describe pockets of ore 
lying between the beds at certain definite horizons in the strata ; 
They are of two kinds. The first is found where two veins cross, and 
only bears lead where a spar-vein intersects it. The second kind is 
found in connection with courses of dun limestone ; the latter is a dolo- 
mitized limestone of a brown colour, and wherever this peculiar 
feature is observed it is usually accompanied by lead, the metal being 
found up and down between the dun and the white hmestone. 
In addition to the paper already referred to, read in 1878, the 
Fossil Flora of the lower coal measures in the neighbourhood of 
Halifax has received valuable attention from Messrs. Wm. Cash and 
Thos. Hick, and they have published joint papers between the years 1879 
and 1884. In 1879 they described a series of examples of fossilised 
fungoid growths which, though not sufficiently perfect for complete 
identification, still presented many interesting characters deserving 
detailed description. The fungus was found in a rootlet of some 
plant, and the tissues of the rootlet bear obvious marks of the 
ravages which the fungus has made upon it. Its cell walls are crude 
and less sharply defined in the infected part, so that the two 
can be readily distinguished even under the lower powers of the 
microscope. The vegetative part of the fungus consists of a large 
number of very delicate hyphjB, the majority finer than the threads 
of Penicillium glaucum, and can scarcely be more than 1-7000 inch 
