INSTRUCTIONS TO AUTHORS. 
The ‘ copy ’ should be written on large sheets of paper, on one side only, 
and the pages should be clearly numbered. The MS. must be easily legible, 
preferably typewritten, and must be absolutely in its final form for printing. 
All tables of contents, references to plates, or illustrations in the text, etc., 
must be in their proper places, with the page numbers left blank; and 
spaces must be indicated for the insertion of illustrations that are to appear 
in the text. 
Illustrations. — All illustrations must be drawn in a form im- 
mediately suitable for reproduction ; and such illustrations as can be 
reproduced by photographic processes should, so far as possible, be 
preferred. Drawings to be reproduced as line blocks should be made with 
Indian ink (deadened with yellow if of bluish tone), preferably on fine 
white bristol board, free from folds or creases ; smooth, clean lines, or 
sharp dots, but no washes or colours, should be used. If the drawings are 
done on a large scale, to be afterwards reduced by photography, any 
lettering or other legend must be on a corresponding scale. 
If an author finds it inconvenient to furnish the drawings according to 
these regulations, the Society will have the figures re-drawn and the letter- 
ing entered at his expense ; but this will cause delay. 
When the illustrations are to form plates, a scheme for the arrangement 
of the figures (in quarto plates for the Transactions, in octavo for the 
Proceedings) must be given, and numbering and lettering indicated. 
Proofs. — A first proof and, if desired, a revise of each paper will be 
sent to the author, whose address should be indicated on the MS. Expenses 
for proof correction should not exceed 10 per cent, of the printers’ charges 
on the setting and printing of each paper. Any excess will be charged 
against the author. 
All proofs must, if possible, be returned within one week, addressed to 
TJte Secretary, Royal Society, 22-24 George Street, Edinburgh, and not to 
the printer. To prevent delay, authors residing abroad should appoint 
someone residing in this country to correct their proofs. 
The author receives fifty of the reprints free, and may have any 
reasonable number of additional copies at a fixed scale of prices which 
will be furnished by the printer, who will charge him with the cost. To 
prevent disappointment, especially if the paper contains plates, the author 
should, as soon as possible, notify to the Secretary the number of additional 
copies required, and should also repeat the notification on the first proof 
returned. 
Index Slips. — In order to facilitate the compilation of Subject 
Indices, and to secure that due attention to the important points in a 
paper shall be given in General Catalogues of Scientific Literature and 
in Abstracts by Periodicals, every author is requested to return to the 
Secretary, along with the proof of his paper, a brief index (on the model 
given below) of the points in it which he considers new or important. These 
indices will be edited by the Secretary, and incorporated in Separate Index 
SJips, to be issued with each part of the Proceedings and Transactions. 
MODEL INDEX. 
Schafer, E. A. — On the Existence within the Liver Cells of Channels which can be directly 
injected from the Blood-vessels. Proc. Roy. Soc. Edin,, vol. 1902, pp. 
Cells, Liver, — Intra-cellular Canaliculi in. 
E. A. Schafer. Proc. Roy. Soc. Edin., vol. , 1902, pp. 
Liver, — Injection within Cells of. 
E. A. Schafer. Proc. Roy. Soc. Edin., vol. , 1902, pp. 
