° » 
Notices of E'uropean Herbaria. 15 
found in the herbarium of the late Richard, now in the possession 
of his son, Prof. Achille Richard, which even contains a few 
species that do not exist in the herbarium at the Royal Museum. 
The herbarium of the celebrated J ussieu, a fine collection, which 
is scrupulously preserved in its original state, by his worthy son 
and successor, Prof. Adrien J ussieu, comprises many North 
American plants of the older collectors, of which several are au- 
thentic for species of Lamarck, Poiret, Cassini, &c. 
The herbarium of De Candolle at Geneva, accumulated through- 
out the long and active career of this justly celebrated botanist, 
and enriched by a great number of correspondents, is surpassed 
y few others in size, and by none in importance. In order that 
it may remain as authentic as possible for his published works, 
especially the Prodromus, no subsequent accessions to families 
already published are admitted into the general herbarium, but 
these are arranged in a separate collection. The proper herbari- 
_um, therefore, accurately exhibits the materials employed in the 
preparation of the Prodromus, at least so far as these were in Prof. 
é Candolle’s own possession. As almost twenty years have 
elapsed since the commencement of this herculean undertaking, 
the authentic herbarium is of course much less rich in the earlier 
than in the later orders, The Composite, to which seven years 
of unremitted labor have been devoted, form themselves an 
erbarium of no inconsiderable size. It is unnecessary to enu- 
merate the contributors to this collection, (which indeed would 
form an extended list,) since the author, at least in the later vol- 
umes of the Prodromus, carefully indicates, as fully as the work 
Permits, the sources whence his materials have been derived. 
he paper employed is of an ordinary kind, somewhat smaller 
than the English size, perhaps about fifteen inches by ten; and 
the Specimens are attached to half-sheets by loops or slips of 
Paper fastened by pins, so that they may readily be detached, if 
_~ saty, for particular examination. Several specimens from 
different Sources or localities, or exhibiting the different varieties 
of a species, are retained when practicable ; and each species has 
4 Separate cover, with a label affixed to the corner, containing the 
name and a reference to the volume and page of the Prodromus 
Where it is described. The limits of genera, sections, tribes, é&e. 
we marked by interposed sheets, with the name written on pro- 
Jecting slips, The parcels which occupy each compartment of 
