Harvestmen and Pseudoscorpions of Yorkshire. 193 
hay and refuse; in old breweries and granaries: in 
hollow trees and in old nests of owl and starling. 
ist Record: the Author, Linthwaite. The Naturalist, 
December, 1907. 
V.C. 63.—Broad oak, Linthwaite, Colne Valley, two 
examples in the cracks between the flagstones of a 
mistal: in a stable behind Wormald House, Almond- 
bury, Huddersfield, many examples of all ages, among 
refuse of hay, oats, etc., 1909; in a barn, Barrett, 
Slaithwaite, one example, I9I5. 


7O; 
The Fungus Flora of Wirral. By Lt.-Col. J. W. Ellis (84 pages, cloth, 
price 3s. post free from the author, 18, Rodney Street, Liverpool). Dr. 
Ellis has acted wisely in reprinting his papers on Wirral Fungi from the 
Proceedings of the Liverpool Naturalists’ Field Club, as his notes are now 
in very handy form for the pocket. The booklet is illustrated by a 
number of plates from photographs showing haunts of typical Wirral 
Fungi. Altogether his list includes 818 species, 253 of which are Agarics. 
On the thickness of Strata in the Counties of England and Wales, 
exclusive of Rocks older than the Permian, (Mem. Geol. Survey). By 
A. Strahan, T. V. Holmes, H. Dewey, C. H. Cunnington, W. C. Simmons, 
W.B. R. King and D. A. Wray. Royal 8vo, 1916. pp. 172. 4s. 6d. 
In 1801, William Smith, the father of English Geology, issued a pros- 
pectus of a work of his own, which work never appeared ! Had Smith been 
asked to review the memoir recently published by the Survey, he would 
probably have used very similar words. They are to the effect that from 
the book, ‘ the Philosopher may derive an inexhaustible fund of valuable 
information. The miner may learn more readily, as well as more certainly, 
to trace the course of his ore ; and, while his ideas are extended a curiosity 
will naturally be excited, that may pave the way to new and unthought-of 
discoveries. The various artists employed in building, from the humble 
Mortar-maker to the enlightened Architect, must all be interested in a 
method of discovering sand, clay, stone, slate, and other materials, and of 
selecting with certainty such as are best. Fullers, Founders, Glass-Makers, 
etc., will learn where to send for earths and sands of the qualities best suited 
to their respective purposes ; and sources of supply will, probably, be opened 
in places of which they now entertain no idea. Chemists, Colour-men, 
Vitriol, Alum, and Salt-makers, will learn how to trace the materials they 
have occasion for ; and will be enabled frequently to obtain, at once, the 
different advantages of more convenient situations, smaller expense, and an 
improved quality. The Canal Engineer will be enabled to choose his 
stratum, find the most appropriate materials, avoid slippery ground, or 
remedy the evil. The Building Contractor may also form his estimates 
with more certainty to himself, and more satisfaction to his employer, by 
the experience he has had, and the observations that he will be lead to make 
on similar works in a like stratum. Brick-makers, Potters, and others, are 
also: interested in a knowledge of the correct Theory of those materials 
which furnish their sole employment. Indeed, there are but few of the 
most necessary occupations of life, that may not derive from this Work 
some useful hint or improvement.’ The memoir now before us is of quite 
anew type. Itis arranged under the heads of counties, and the thicknesses 
of the various beds, from the latest information, are given. This inform- 
ation will be of value to the geological student in a variety of ways, and 
engineers and other will also derive useful information from it. 
1916 Junel. 
N 
