BY E. D. MERRILL. 
101 
periodicals our sets are complete only after the year 1902, 
and a few of the older periodicals are lacking entirely, 
notably ‘ Linnaea ’; ‘ Flora/ before the year 1902, lacks 
many volumes, &c. Some of these periodicals that are 
not available in Manila contain papers in which Bornean 
species are considered. 
In preparing the bibliography the author has constantly 
been confronted with the question of determining what to 
include and what to exclude. In general, only those papers 
have been mentioned which contain direct references to 
Borneo—either those in which new forms are described, 
or those in which older species are credited to Borneo, or 
both. It thus happens that practically no botanical publi¬ 
cations issued before the year 1839 are included, and com¬ 
paratively few issued before the year 1850. Miscellaneous 
references to Borneo in such works as Hooker’s ‘ leones 
Plantarum,’ Curtis’s * Botanical Magazine,’ and the ‘leones 
Bogoriensis ’ have not been indexed separately. In Be 
Candolle’s ‘ Prodromus/ for instance, no references are 
found to Borneo directly until volume fourteen (1856-57), 
except a single doubtful reference in volume five (1836).* 
Accordingly, the different monographs in volumes one to 
four and from six to thirteen of the ‘ Prodromus ’ have not 
been indexed, although many of these are essential to the 
student of the Bornean flora. Similarly, I have not in¬ 
cluded in this bibliography references to the fundamental 
and general works, published before 1850, of such authors 
as Linnaeus, Burman, Willdenow, Vahl, Betzius, Loureiro, 
Kunth, Sprengel, Boemer and Schultes, Boxburgh, Both, 
Hasskarl, Wallich, Gaertner, Presl, Gaudichaud, Endlicher, 
W. J. Hooker, Griffith, Lamarck, Forster, Don, Thunberg, 
&c., nor to pre-Linnean authors such as Bheede, Hermann, 
Burman, &c., as they contain no direct references to 
Borneo. For information regarding the works of these 
authors and the bibliography of botany in general, the 
student is referred to Pritzel’s ‘ Thesaurus Literature 
Botanicae,’ Jackson’s ‘ Guide to the Literature of Botany,’ 
Behder’s ‘ The Bradley Bibliography,’ Just’s ‘ Botanisches 
Jahresbericht,’ the ‘Botanisches Centralblatt,’ and the 
‘ International Index to Scientific Literature.’ 
It is true that many of the works of the above authors 
are fundamental, and must be consulted by all working 
botanists concerned with the investigation of the flora of 
* DC. ‘ Prodromus,’ 5 (1836) 451 sub Pluchea indica, Less. 
(h. Merat).” 
“ Borneo ? 
