NOTICE TO AUTHORS AND COMMUNICATORS. 
The Council have had under consideration the rapid increase of the Societys — 
expenditure on publications. In view of the necessity for economy, authors of papers 
are urgently requested to see that their communications are put in as concise a form as 
possible. Delay in decisions regarding publication, as well as subsequent trouble to 
authors, is often caused by diffuseness or prolixity. MSS. must be type-written or at 
least written in a legible hand, and properly prepared as copy for press. Type-written 
transcript should in all cases be carefully revised by the author before being presented. 
It is desirable that authors should retain copies of their MSS. for reference. ‘ 
Authors are further requested to send in all drawings, diagrams or other illustrations 
in a state suitable for direct photographic reproduction. They should be drawn on 
a large scale in Indian ink on a smooth white surface, with lettering adapted to a_ 
reduction in scale. Great care should be exercised: in selecting only those that are 
essential. Where the illustrations are numerous, much time would be saved if the 
authors would indicate in advance those which, if a reduction of their number i is found 
to be required, might be omitted with least inconvenience. 
‘Tt shall be the duty of each F ellow or F oreign Member to at himself that any letter, report or 
other paper which he may communicate, is suitable to be read before the Society.""—Statute VI, Cap. xu. 
NOTICES TO FELLOWS OF THE ROYAL SOCIETY. 
The Council have directed that the Minutes of the Meetings of the Society shall 
be sent out as an inset in the‘ pa Seatness, separately paged, and shall afterwards be 
republished 1 in the ‘ Year-Book.’ 
The ‘Proceedings,’ both the Physical and the Bistesen Series, are sent in the 
ordinary course by. post to every Fellow of the Society who resides within the limits 
of the Postal Union. On application to Messrs. Harrison and Sons, 45, St. Martin’s Lane, ~ 
these will be bound in volumes, in cloth, for 2s. 6d., or the cases for se may be 
purchased, price Is. 6d. 
The ‘ Philosophical Transactions’ are Aolvered: in : Golnien in cloth covers, ate to 
those Fellows who call for them, or who send a written application to the Assistant 
’ Secretary. Such an application may, if so desired, be filed as a standing order. 
The ‘ Philosophical Transactions’ are also delivered in the form of separate Papers, 
post free, immediately on publication, to those Fellows who desire to have them in that 
form. And, on application to Messrs. Harrison and Sons, 45, St. Martin’s Lane, these — 
will be bound in a cloth case for 2s. 6d., or the cloth cases for binding may be 
purchased, price Is. 6d. 
SUBSCRIPTION TO THE PUBLICATIONS OF THE ROYAL 
SOCIETY. 
The ‘ Proceedings" are on sale to the public in numbers, on mies x nae prices 
appearing on the wrappers ; or as completed volumes, bound in cloth, Series Ay 20s. £ 
Series B, 25s. per volume. 
Fhes Proceedings” may also be obtained by subscription, for either or both | series, 
paid in advance, at special rates as under :— 
, Series A, 15s. per volume. 
Series B, 20s. per volume. 
For this advance subscription, each series may be had in separate numbers, . 
immediately on publication, or as s completed volumes, bound in blue cloth. 
