INTERNATIONAL CATALOGUE OF 
SCIENTIFIC LITERATURE. 
Tue Rovar Society has been engaged for some years past 
in arranging for the publication of an International Catalogue 
of Scientifie Literature, beginning from the lst January, 
1901. Each science will be represented in an annual volume 
containing lists arranged under authors and subjects, of all 
books and papers published during the year; these will be 
contributed through official channels of information—abroad, 
by direct control of the respective governments—at home, 
by meaus of the various Societies which devote themselves 
to particular sciences ; those Societies whose domains over- 
lap having arranged for mutual cooperation. 
The collection of title-slips for the United Kingdom of 
Great Britain and Ireland as regards 
BOTANY . 
has been undertaken by the Council of the Linnean Society, 
and they would appeal to all botanic workers for support in 
their endeavour to compile a complete record, by sending 
notices promptly of all botanic issues to the undersigned. 
Part I. for 1901, consisting of 378 pages, price 21 shillings, 
was issued on July 10, 1902; Part II., completing the 
volume, is now in course of compilation. 
B. DAYDON JACKSON, 
General Secretary, Linn, Soc. 
