THE STURTEVANT PRELINNEAN LIBRARY. 235 
ter omitted from a title-page, after the citation of the title 
proper has begun, is represented by asterisks, until the 
date is reached, where less formality is observed. Words, 
letters or even punctuation points supplied are bracketed. 
Dates, names or parts of names, and all extraneous matter, 
derived from a preface, portrait, or other source outside of 
the title-page, are inclosed in brackets, except when de- 
rived from a colophon. Occasionally there is a discrep- 
ancy between a title-page date and that given in the 
colophon, and in such a case the latter is likely to be the 
more trustworthy, as marking the actual printing of the 
last sheet, while the title-page may have been engraved in 
advance, with a date showing the anticipated time of pub- 
lication. 
Where supplementary papers by authors other than the 
principal author are added to a work, and specifically and 
sufficiently indicated in the title-page, they are not cata- 
logued as separate works, even though in some instances 
separately paged, —the practice in the pagination of the 
older works being neither uniform nor consistent, —but 
cross-references to the added or included papers are always 
given. In some particular cases, the included mention in 
the title-page is purposely omitted in the citation of the 
main work, to permit of the logical citation of the additions 
as separate works. 
Accents omitted, for typographical reasons, from letters 
on title-pages are not supplied in this catalogue. A few 
obvious misprints are corrected, —always in brackets, — 
or occasional reference is made to an uncorrected error. 
The old Umlaut in the German and the Swedish, con- 
sisting of a minute e placed directly above the vowel, is 
for reasons of convenience represented in this list by the 
modern form. ‘The digraphs # and © are separated into 
their constituent elements, chiefly for the sake of uni- 
formity with other publications in the Garden Report. 
Some few accents and diacritical marks of an unusual char- 
