BOTANICAL INFORMATION. 117 
the late Professor De Candolle; Hydrophyllee, by M. Al- 
phonse De Candolle; Polemoniacee, by Mr. George Ben- 
tham; Convolvulacee, by M. Choisy; and Boraginee, by 
the late Professor De Candolle. 
The tenth volume will consist almost entirely of two 
families, the So/anee, by M. Dunal, author of the Mono- 
graph on Solanum; and the Personate or Scrophularine, 
which Mr. Bentham is now describing from a rich collection 
of materials. 
For the eleventh, twelfth, and succeeding volumes, M. 
Alphonse De Candolle has secured many distinguished co- 
operators, among whom we may mention Mr. Bentham 
for the Labiate, Nees ab Esenbeck for the Acanthacee, M. 
Decaisne for the Plantaginee, M. Moquin-Tandon for the 
Amaranthacee and Chenopodee, M. Meisner for the Polygo- 
nee, Proteacee, and Begoniacee. The previous labours of 
these gentlemen, and the ample resources at their disposal, 
leave no manner of doubt that the articles furnished by 
them will be the result of extensive and varied research.” . 
Those who do not already possess this inestimable work 
will be glad to know that the cost of the whole seven 
volumes has been reduced from one hundred and seventeen 
to seventy-eight francs, and each volume will, in future, be 
sold separately at thirteen francs. The utility of this book 
is increased by the publication of an Index in one volume 
octavo, by Dr. Buek (Berlin) ; but it is unfortunately in two 
parts : the first part, containing the Index to the four first 
Volumes, was published in 1842 ; the second, containing that 
of volumes five, six, and the first section of volume seven, 
bears date 1840. The second edition of the admirable “ No- 
menclator Botanicus” of Steudel (in which 78,000 species 
are enumerated, and their synonyms given,— Stuttgard and 
Tubingen, 1840,) constitutes, however, a far better index to 
the work of De Candolle, inasmuch as it refers to the whole of 
the seven volumes, and is an uninterrupted alphabetical 
arrangement, 
