236 Notes and Comments. 
several members considering that Honours students should be 
left unfettered to compile their own lists. The report is signed 
by Messrs P. F. Kendall and W. Lower Carter, and is valuable 
from the fact that a list of typical fossils of each important 
geological horizon is given. 
THE DERBYSHIRE COALFIELD. 
Under the somewhat comprehensive title of ‘ The Geology 
of the Northern Part of the Derbyshire Coalfield and Bordering 
Tracts,’ ‘ Memoirs of the Geological Survey, England and 
Wales. Explanation of sheet 112 and the Southern part of 
Sheet 100,’ by W. Gibson, C. B. Wedd, G. W. Lamplugh, 
R. L. Sherlock and L. Moysey, has been issued a Memoir 
at the reasonable price of 3s. It contains nearly 200 pp.,. 
several plates and sections, and a fine series of plans, well 
printed on plate paper showing the more important physical 
features of the area. Mr. Lamplugh has edited the part 
which we are pleased to see is rather better printed than usual, 
and the paper forming the cover is quite substantial. We 
should like to congratulate the Survey on the improvement 
now being made in the general appearance of these Memoirs. 
RESTS FOR BIRDS. 
We notice from Bird Notes and News, Volume VI., No.11,, 
that steps are being taken by the Trinity House to arrange 
resting places round the lanterns of lighthouses in order that 
the birds fascinated by the light may have shelter. Mr. 
Thijsse, a Dutch naturalist, has shown that only a comparatively 
small proportion of birds are killed at the lighthouses by- 
dashing themselves against the glass, whereas a very large 
proportion drop down from sheer exhaustion after flying 
round and round the light. After placing perches on the 
Terschelling light, Mr. Thijsse was able to report that the loss 
of bird life had been reduced from thousands in a night to 
something like a hundred in the whole of the migration season. 
The Royal Society for the Protection of Birds is going to 
arrange for similar perches on the top of the Spurn light- 
house. It is recommended to other lighthouses, and it is 
hoped that more will be treated in the same way in the future. 
THE WATER SUPPLY OF NOTTINGHAMSHIRE. 
Geological Survey Memoir, 1914, pp. iv. +174. 5s. London : 
Fisher Unwin. This Memoir forms one of a series on the 
Water Supply of English Counties which is in the course of 
publication by the Geological Survey. It contains (1) a 
general account of the geological structure of Nottinghamshire 
in relation to water-supply ; (2) a chapter on the rainfall by 
Dr. H. R. Mill ; (3) a description of the conditions of water- 
supply in every town and village ; (4) particulars of sections. 
Naturalist, 
