310 Natural-Philosophical Collections. 
has. pursued an analogous plan in the formation of the native sulphurets, and ex- 
plains how the phenomenon has been produced at the moment of the consolidation 
of the masses. 
The iodurets, the bromurets, the crystallized metallic seleniurets, may be ob- 
tained by the same means. The ioduret of lead is in beautiful yellow octahe- 
dral crystals of a brilliant aspect: that of copper presents the same form, but the 
colour is different. 
In general, all these products result from a simple principle which nature cari 
easily bring into action.—Le Globe. 

CATALOGUE RAISONNE. 
Plante Asiatice rariores ; or, Descriptions and Figures of a select 
number of unpublished East Indian Plants. By N. Watuicu, 
M. and P.H.D. London. Treuttel & Wiirtz. 
We have seen a part of the first number of Dr. Wallich’s magnificent work 
on the rare East Indian Plants. It is published in elephant folio, which 
admits of much grandeur of delineation, without rendering the work se 
bulky as to be unwieldy. It will be completed in twelve numbers, con- 
taining twenty-five engravings. The first number contains delineations of 
the Amherstia nobilis, a splendid leguminous plant, belonging to the tribe 
of Cassiee of Decandolle, found in the province of Martaban ; tbe Ster- 
culia populifolia; the Hibiscus Lindlei, a handsome species from the 
banks of the Irawaddi; Anneslea fragrans; Phaseolus fuscus; two elegant 
species ot Caalluma, C. crenulata and C. fimbriata, from the sterile banks 
of the Irawaddi, found among stones and ruins ; two extremely beautiful 
species of Curcuma, C. Roscoeana aud C. ardata; the interesting tree 
Melanoorheea usitata; and an extensive climber, Hirza hirsuta, from 
the manuscript Flora Indica of the late Dr. Roxburgh, who says it isa 
native of Chittagong. There may be sometimes some harshness in the 
colouring ; but the subjects are so splendid, and the materials so gor- 
geous, that the work cannot but be a magnificent repository of the 
beautiful vegetation of India. 
Essai sur les Insectes de Java, et des Iles Voisines. By P.-L. 
VANDER LinpEN. First Memoir. Hayer. Brussels, 1629. 
Mr. M‘Leay, in 1825, began a work, entitled ‘“‘ Annulosa Javanica,” &c. 
of which the first part only appeared. Dr. Van Linden proposes, ina 
series of memoirs, to give descriptions of the new or doubtful species in 
the Dutch collections, and to add to them a catalogue of the species alrea= 
dy described. The method he intends following is that of Latreille. The 
first memoir comprises the tribe of Cincindeletes of Latreille. Out of 
ten genera of which this tribe is composed in M. Déjean’s Spécies Géné- 
ral, there are only four, those of Cicindela, Therates, Colliuris, and 
Tricondyla, amongst which any species have been found in the Dutch 
East Indian possessions. The three last genera are indeed exclusively 
proper to the Hast Indies and to Polynesia; that of Cicindela comprises 
species from all quarters of the globe. 
The collections of Java have offered the following numerical results :— 
Out of thirteen species of Cicindela, there are but three described as the 
species of Earl Déjean, and one of them is new. Out of four species of 
herates, two are described in the above-mentioned work, and two are 
new. Out of seven species of Colliuris, three only have been described 
in the same work, a fourth by Mr. M‘Leay, and the three others are 
new. The collections contain, in addition, only the two Tricondyla al- 
ready known. 
