THEJOURNALOF ECOLOGY 
EDITED FOR THE 
r 
BRITISH ECOLOGICAL SOCIETY 
BY 
A. G. TANSLEY 
T HE objects of The Journal of Ecology are (i) to foster and promote in all 
ways the study of Ecology in the British Isles, serving as the organ of the 
British Ecological Society; (2) to present a record of and commentary upon 
the progress of Ecology throughout the world. Its contents include original articles 
and notes on ecological topics of current importance, including methods of ecological 
study and research ; reviews and notices of publications of general ecological bearing 
and of work upon plant and animal communities in all parts of the world; reports 
and notices of meetings of the British Ecological Society; and the progress of the 
Nature Protection movement and of ecological work in Nature Reserves. 
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 which it will take a comprehensive view, including in its scope not only work 
dealing with general principles, methods, surveys, and other ecological studies, but 
also publications dealing with Plant and Animal Ecology and Geography, Planktono- 
logy, the science of soils (soil physics, chemistry, and the investigation of soil 
floras and faunas), and other branches of Natural Science (Geology, Climatology, 
Agriculture, Forestry, &c.), so far as these have a direct bearing upon Ecology— 
the relationships of plants to their environment in the widest sense, including the 
interrelationships between plants and animals. In brief, it aims at furnishing 
a comprehensive review of progress in the entire field of Ecology, touching, as this 
field does, kindred branches of science on various sides. 
The Journal of Ecology is published quarterly—in March, June, September, and 
December. The annual subscription price, including postage to any part of the world, 
Tor a single copy of each of the four issues making up the annual volume, is Fifteen 
Shillings (155.) net; single copies, Five Shillings (55.) net each. Subscriptions for 
the Journal 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 the Society, One Guinea (fi is.), to the Secretary, Dr. E. J. Salisbury, Limbrick 
Hall, Harpenden, Herts. The annual subscription includes the supply of one copy 
of each of the four issues of the Journal. Editorial communications should be 
addressed to A. G. Tansley, Grantchester, Cambridge. 
Contents of Vol. V, Nos. 3 & j. December 1917 
ON THE VEGETATION OF FOUR DURHAM COAL-MEASURE ,FELLS. 
III. ON WATER-SUPPLY AS AN ECOLOGICAL FACTOR. IV. ON 
VARIOUS OTHER ECOLOGICAL FACTORS. By Harold Jeffreys. 
(With 1 plate.) 
ON THE ECOLOGY OF THE VEGETATION OF BRECKLAND. 
V. OBSERVATIONS RELATING TO COMPETITION BETWEEN 
PLANTS. By E. Pickworth Farrow. (With 1 plate and 2 text-figures.) 
ON COMPETITION BETWEEN GALIUM SAXATILE L. (G. HERCYNICUM 
WEIG.) AND GALIUM SYLVESTRE POLL. (G. ASPERUM SCHREB.) 
ON DIFFERENT TYPES OF SOIL. By A. G. Tansley. 
THE AQUATIC AND MARSH VEGETATION OF ESTHWAITE. WATER. 
By W. H. Pearsall. (With 12 text-figures.) 
ATMOSPHERIC ELECTRICITY AS AN ENVIRONMENTAL FACTOR. 
By Ingvar Jorgensen and Walter Stiles. 
THE ESTABLISHMENT OF DESERT PERENNIALS. By Forrest Shreve. 
REVIEW. NOTICES OF PUBLICATIONS ON FOREIGN VEGETATION : 
—NEW ZEALAND VEGETATION. IN MEMORIAM. THE BRITISH 
ECOLOGICAL SOCIETY. 
