Regional Bureaus have already been established in Belgium, Canada, 

 Cape Colony, Denmark, Egypt, France, Great Britain and Ireland, 

 Germany, Greece, Holland, Hungary, Italy, India and Ceylon, Japan, 

 Mexico, New Zealand, New South \\"ales, Norway', Portugal, Poland, 

 Queensland, Russia, South Australia, Sweden, Switzerland, the United 

 States of America, Victoria, Western AustraUa, Finland. 



The branches of Science to be included in the Catalogue are the 

 seventeen following : — 



A — Mathematics 



B — Mechanics 



C — Physics 



D — Chemistry 



E — Astronomy 



F — Meteorology (including Terrestial Magnetism) 



G — Mineralogy (including Petrology and Crystallography) 



H — Geology 



J — Geography (Mathematical and Physical) 



K — Palfeontology 



L — General Biology 



M — Botany 



N — Zoology 



— Human Anatomy 



P — Physical Anthropology 



Q — Physiology (including experimental Psychology, Pharmacology 



and experimental Pathology) 

 R — Bacteriology 



Each com2:)lete annual issue of the Catalogue will thus consist of 

 seventeen volumes. The price at which this set will be sold to the 

 public is £18. Individual volumes will be sold at pi'ices varying with 

 their size from about ten to thirty-five shillings. 



A Schedule of Classification and an Index thereto will be pre- 

 fixed to each volume in English, French, German, and Italian. 

 This will not only enable the scientific worker to study the system 

 of classification in the language with which be is most familiar, but 

 also in cases of doubt — e.g. as to the meaning of a word — will enable 

 him to refer to the corresponding entry in another language. Should 

 there be a marked discrepancy among the schedules on any point the 

 English schedule is to be taken as guide, the schedules printed in that 

 language being those which were approved by the International 

 Council. 



The various headings and sub-headings throughout the Subject Index 

 are given in English. Translations of the main headings can be found 

 on reference to the schedules in the other languages by means of 

 the registration numbers that are attached to them. 



The entries in the Subject Indexes are in the language of the 

 original paper when that is one of the following five languages : 

 Latii], English, French, Gei'man, and Italian. These are the only 

 languages used in the Subject Index, but in case of translation the 

 name of the language of the original is inserted within round brackets. 



In the Authors' Catalogue each title is given in the original 

 language. When, however, that language is not one of the five 



