JOURNAL 
EDITED FOR 
BRITISH ECOLOGICAL SOCIETY 
By A. G. TANSLEY 
The objects of THE JOURNAL OF ECOLOGY are (i) to foster and promote in al 
ways the study of Ecology in the British Isles, serving as the organ of the BRITISF 
ECOLOGICAL SOCIETY ; (2) to present a record of and commentary upon the progress 
Df Ecology throughout the world. Each issue contains original articles and notes or 
scological topics of current importance, including methods of ecological study and re 
search ; reviews and notices of publications of general ecological bearing of work upor 
plant and animal communities in all parts of the world ; and reports and notices of meetings 
□f the British Ecological Society ; progress of the Nature Protection movement and o 
ecological work in Nature Reserves ; list of current literature. 
THE JOURNAL OF ECOLOGY , being largely a Review, is indispensable to those 
desiring to keep abreast of the extensive and widely scattered literature of Ecology, of whic ; 
it takes a comprehensive view, including in its scope not only work dealing with genera 
principles, methods, surveys, and other ecological studies, but also publications dealing 
with Plant and Animal Geography, Planktonology, the science of soils (soil physics 
chemistry, and the investigation of soil floras and faunas), and other branches of scienc< 
(Geology, Climatology, Agriculture, Forestry, &c.), so far as these have a direct bearing 
upon Ecology- the relationships of plants and animals to their environment in the wides 
sense, including the inter-relationships between plants and animals. In brief, it aims a 
furnishing a comprehensive review of progress in the entire field of Ecology, touching 
as this field does, kindred branches of science on various sides. 
At present issues of not less than 64 pp. each appear in March and June, and a thir 
larger issue in the autumn (200-240 pp. in all). It is hoped that in the future it may b 
possible to publish four quarterly numbers of 64 or more pages each. The Journal i 
illustrated by photographic plates' of vegetation and by numerous figures in the text. Th 
subscription price is one pound per annum. The quarterly issues are priced at seve 
shillings and sixpence each, larger issues at higher prices. Subscriptions for the Journc 
are payable in advance and should be sent to Mr. C. F. Clay, Cambridge University Press 
Fetter Lane, London, E.C. 4, either direct or through any bookseller. 
Members of the British Ecological Society should send their annual subscription to th 
Society (25s.), which includes the supply of one copy of each issue of the journal , t 
the Secretary, Dr. E. J. Salisbury, The Briars, Crosspath, Radlett, Herts. 
CONTENTS of Vol. IX, No. i. September, 1921. Price15s.net. 
THE ECOLOGY OF URTICA DIOICA. By Carsten Olsen. (With Plate I.) 
THE DURMAST OAK-WOODS (QUERCETA SESSILIFLORAE) OF Th] 
SILURIAN AND MALVERNIAN STRATA NEAR MALVERN. P-Spi 
Salisbury and A. G. Tansley. (With Plate II.) - 
THE EFFECT OF TEAT ON THE TRANSPIRATION AND JrowTH OF 
CERTAIN PLANTS. By Kathleen M. Thatcher. (With siX|g Ures j n t ^ e j ex j. 
THE ECOLOGY OF CALLUNA VULGARIS.. II. THE CAI t F tj GE HABIT Bv 
x M. C. Rayner. (With Plate III.) . ' * 
SOME OBSERVATIONS ON PLANTS IN THE JbyAN DESERT. By H. 
HaMshaw Thomas. (With Plate IV and one figurq n the Text.) 
.me (PICA’S .CONTRIBUTION TO THE jfORY OF THE PLANT-WORLD 
By IT B. i happy. 
PECFES AND AREA. L>y tOlof /rrheniust 
BRITISH ECOLOGICAL SOCIETY. 
Annual Meeting. • .. ' : - 
List of Members. -/ $ 
Summer Excursions 1921. 
OOK NOTICE. British Plants : their Biology and Ecology. (Bevis and Jeffery.) 
NOTICES OF PUBLICATIONS OF GENERAL BEARING . 
