VI 



facilitated if the editors of Scientific Journals would insist on authors giving their full 

 names in all their papers ; this is the practice in some Societies, but it is by no means 

 universal. 



In the compilation of the supplementary Volume XII it was decided that reference 

 should be given only to the original publication of a paper, and that abstracts should not 

 be inserted unless they were of papers published in the less well-known languages. In 

 order to find the original paper it was often necessary to compare it with its reprints, 

 and to select the one that appeared to be most suitable. This was found to entail a large 

 amount of work, and the Committee has therefore thought it advisable to discontinue such 

 procedure and to include under one entry the papers from different Serials which have 

 identical titles and approximately the same date. This course has economised time ; and 

 it has the advantage of making reference more easy where some of the Serials are not 

 readily accessible. Such entries are, however, not quite complete because a considerable 

 number of the duplicates had been destroyed before this decision was made. 



When possible, abstracts of papers in languages other than English, French, German, 

 Italian or Latin are included in the entries along with the originals. 



When the reference to a paper contains more than one set of pages these usually 

 represent different parts of the same paper; but in the case of papers in the less familiar 

 languages contained in Serials which also issue a translation or resume of the paper in some 

 better known language, the additional paging sometimes represents this translation, not a 

 continuation of the paper. In certain Serials the second paging has been marked Res. 

 irrespective of the language of the translation or abstract. 



Anonymous papers have not been entered in the Catalogue of Authors, although their 

 contents have been used for the Subject Index. In former volumes these anonymous papers 

 have been printed separately under the respective Serials, after Z. 



The titles of important Patents have been collected and will be placed at the end of 

 the Catalogue. 



Very brief notes which are especially numerous in the Zoological Serials have not been 

 catalogued owing to inevitable limitations of space. 



For the transliteration of the names of Russian authors the system adopted by the 

 International Catalogue of Scientific Literature, based on the phonetic value of Roman 

 letters in Bohemian, has been used, cross references being employed to facilitate identification. 



A list of the 1555 Serials which have been examined for the preparation of the Catalogue, 

 together with the Abbreviations "used for their titles, is prefixed. 



A large number of expert Referees have assisted in the selection of the papers and 

 in making the titles for the Subject Index, and the Committee is indebted for this 

 responsible and valuable work to Miss K. A. Burke, Miss G. L. Elles, Miss Alice Everett, 

 Miss E. J. Forbes, Miss W. M. Hudson, Miss G. L. C. Matthaei, Miss F. M. G. Micklethwait, 

 Miss M. H. Naylor, Miss E. Perriri, Miss Burna Pool, Mrs Kingston Quiggin, Miss Ida Smedley, 

 Miss Frances A. Welby, Miss A. Werner, Mr F. Allen, Dr E. F. Armstrong, Dr A. P. Beddard, 

 Mr T. Duncan Bell, Mr J. H. Binder, Mr W. W. Bryant, Dr John Cameron, Dr E. P. Cathcart, 

 Mr C. V. Crook, Mr J. T. Cunningham, Mr R. J. Dallas, Mr W. A. Davis, Dr E. Drabble, 



