APPEARANCE AND SIZE 
Five issues of The New Phytologist will in future appear during 
the year, each number bearing the date of publication. The minimum 
size of the annual volume is 240 pages. 
SUBSCRIPTIONS 
Subscriptions are payable in advance by crossed Cheque or Postal 
Order and should be forwarded to Wheldon & Wesley, Ltd., 2, 3 & 4 
Arthur Street, New Oxford Street, W.C. 2. Subscription price 25s. per 
annum post free. 
PRICE OF BACK NUMBERS 
Owing to the great scarcity of many back numbers, Vols. I, III, 
VI, VII, X, XI, XII and XIX are Out of Print, and the price of all back 
numbers still available is raised to 45. each (double numbers 75. 6 d.). 
Vols. II, IV, V, VIII, IX, XIII to XVIII, and XX, 25s. each. All enquiries 
are to be addressed to the Publishers, Wheldon & Wesley, Limited. 
Subscribers wishing to dispose of volumes or reprints are requested to 
communicate with Wheldon & Wesley, Ltd., 2, 3 & 4 Arthur Street, 
New Oxford Street, W.C. 2. 
CONTRIBUTIONS 
Contributions on all subjects connected with botanical science and 
teaching will be carefully considered by the Editor. 
A preference is given to contributions having more than a purely 
specialist interest. 
All MSS. must be easily legible, and must be finally revised before 
sending in. 
Alterations in proof exceeding 15 per cent, of the cost of composition 
will be charged to the author. 
The number of separate copies required must be marked on the 
final proof. Fifty separates are given free to each contributor. Any 
further separates required are charged for at the printer’s current price. 
ILLUSTRATIONS 
Whenever possible necessary illustrations should be drawn boldly 
on a large scale in Indian ink on Bristol board so that they can be 
directly reproduced on a reduced scale on zinc blocks, and appear as 
figures in the text. Figures should be grouped where this is possible 
so as to fit the page allowing for the proper reduction. 
No half-tone shading or wash must be introduced into such drawings. 
Shading, where required, must be put in by means of separate dots 
or lines. 
Photographs will be reproduced by the half-tone or collotype process 
and will in most cases appear as plates. 
It is essential that the prints or negatives provided should be of 
good technical quality. 
Pencil drawings when necessary to illustrate microscopic prepara¬ 
tions, etc., will be lithographed, and will appear as plates. 
Not more than one octavo plate can be published in illustration of 
a paper, unless the contributor is willing to pay for the extra illustration. 
This rule does not apply to line drawings intended for reproduction as 
text-figures. 
Considerable and unnecessary trouble and expense are often caused 
by contributors sending in drawings in a form unsuitable for repro¬ 
duction by the best and most economical processes. The attention of 
contributors is called to the foregoing rules. In cases of doubt as to the 
best method of illustration, the Editor will always be glad to give advice 
if consulted beforehand. 
All communications on editorial matters are to be addressed to 
A. G. TansleYj Grantchester, Cambridge. 
