254 NOTICES OF BOOKS. 
It was not to be expected that all the plants described by Linneus 
were to be found in his herbarium. Nevertheless only few genera, and 
those poor in species, are wanting. Not so as regards species, par- 
ticularly among extensive genera; and this applies even to Swedish 
plants, with the additional inconvenience, that some of these are cer- 
tainly of foreign locality, or at least doubtfully of Swedish origin. The 
consequence is, that it is sometimes impossible to decide with certainty 
from the herbarium upon a questionable geographical proposition. 
Thus, Sium nodiflorum is mentioned in ‘ Flora Suecica' as having been 
found at Christianstad by Rosén alone; but as the plant has never 
since been seen there, a mistake was supposed to have occurred either 
in the name or the locality. In the herbarium there is a specimen of 
the plant from abroad, and also another exactly corresponding in all 
respects as to species, but having unfortunately no sort of indication 
to prove that it was gathered at Christianstad. 
(To be continued.) 
NOTICES OF BOOKS. 
PLANTÆ Javanicm RARIORES, descripte et Iconibus illustrate, quas in 
Insula Java annis 1802-1818 legit et investigavit Tuomas HORS- 
FIELD, M.D.; e siccis Descriptiones et Characteres plurimarum elabo- 
ravit JOHANNES J. BENNETT; observationes structuram et affinitates 
presertim. respicientes passim adjecit RonERrUs Brown. Fase. 4. 
_ The first three fasciculi of this learned and important work have long 
. been before the public, to the great advantage of the botanical world: 
_ Fasc.1 having appeared in 1838,-Fasc. 2 in 1840, Fasc.3 in 1844; Fasc.#, 
and we regret to say, the last, completing a volume, is now before us. 
Besides the labours of Messrs. Brown and Bennett, Dr. Horsfield him- 
self has given, in connection with a map of the island, a “ Geographical 
. Preface,” noticing the geological structure, the soil, course of the rivers, 
etc., concluding with the“ geographical divisions of Java, and localities 
visited.” This is followed by a “ Postscript," in which are detailed the 
. circumstances which led to that gentleman's researches in Java, and to 
_ the formation of the herbarium consisting of 2196 species. Due ac- 
_ knowledgments are given to Messrs. Brown and Bennett for their in- 
