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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 
Slips, 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. 
