982 Reviews—W. C. Brogger—Zones of Neolithic Times. 
Under these circumstances, in order to avoid the inconvenience 
and suspense occasioned by a nameless fossil, I would suggest for 
Fig. 3 the specitic designation of Derbiensis as serving also to mark 
geographical locality of this individual. 
All the specimens are in the possession of the discoverer, Dr. L. 
Moysey, M.A., St. Moritz, Ikeston Road, Nottingham, to whose 
courtesy I am indebted for permission to describe these very interesting 
Arthropods. 
EXPLANATION OF PLATE XIII. 
Fics. 1 and 2.—Eurypterus Moyseyt, H. Woodward, sp. nov. Enlarged 1} times 
nat. size. 
Fic. 3.—Eurypterus Derbiensis, H. Woodward, sp. nov. Enlarged 235 times 
nat. size. 
Clay-ironstone Coal-measures, all from a few feet below the ‘‘ Top-Hard-Coal,”’ 
1; miles N.N.W. of Ilkeston, Derbyshire. Collection of Dr. L. Moysey, M.A. 
en. endognath, one of the series of mouth organs (serving as maxillipeds) in 
Fig. 2 I have indicated en. 1, 2, 8, and 4. 
ec. ectognath, indicate the basal joints (coxa) which form the chief organs 
of manducation; they form also powerful swimming organs (see figures in 
Professor Hall’s work and in H. Woodward’s Monograph on the Merostomata). 
im. metastoma or post-oral plate, usually cordiform. 
REVI BW Ss. 
mney Bie $n 
1.—Txuer Zones or Neotrruic Times. 
SrRANDLINIENS BELiGGENHED UNDER STENALDEREN I DET SYDOSTLIGE 
Norce. By W. C. Broecer. With a German resumé, 11 plates, 
2 maps, and 9 figures in the text. Norges Geologiske Under- 
sdgelse, No.41. Kristiania, I commission hos H. Aschehoug & Co. ; 
A. W. Broggers Bogtrykkeri ; 1905. 
WF live in an age of zoning, but one may be pardoned for feeling 
surprise when one reads of the zoning of Neolithic deposits. 
The period embraced is geologically so short that one might on first 
thoughts have considered its subdivision into well-characterised zones 
as almost impossible. Yet this is what Professor Brogger has done, 
and it is of this that he gives us an account in the present volume. 
He has taken advantage of the rapid development of the skill and 
industry of man at this time, and has selected as his zone fossils the 
axe-heads of stone and flint which are found in the deposits of this 
age. He classifies them in certain types, according to their peculiarities 
of form, and each type he shows to be associated with a strand-line 
formed at some stage of recovery from the Littorina-Tapes depression. 
He is aided in this by the fact that the inhabitants of Norway 
during the early portion of the Northern Stone Age were fisher-folk, 
and lived mainly on the sea-shore. During its later stages they 
became more and more an agricultural and pastoral people, and their 
dwelling-places being no longer confined to the shore do not afford so 
exact a determination of its level. Yet even in this case it is 
possible to fix a limit for the height of the sea at that time. 
A general account is given of the Littorina-Tapes depression and of 
