154 
CATALOGUE RAISONNE. _ 
Own the Tertiary Fresh water Formations of Aix, in Provence, including the 
Coal-field of Fuveau. By RopEerick ImpEy Murcuison, Esa. and 
Cuar.Les LYELL, Esa. Jun. Secretaries to the Geological Society ; with a De- 
‘scription of Fossil Insects, Shells, and Plants, contained therein; by JoHN 
Curtis, F.L.S. J. pe C. SowersBy, F.L.S. and J. Linpiey, Professor of 
Botany in the London University.—Ed. New Phil. Journ. No. XIV. p. 287: 
This interesting paper points out the geological position of some fossil in- 
sects and shells of great value, and the whole communication shows the 
necessity which the present state of geognosy demands, of a very deep 
and universal knowledge of the natural sciences. On the red mar! of the 
river Arc, we have reposing the conglomerate and breccia, on which is 
built the town of Aix ; upon these again, red sandstone, (which represents 
the molasse,) breccias of limestone and pink limestone; and above them, 
the gypsum beds, alternating with marls, containing beds of gypsum, 
and fishes, plants, &c. These again are succeeded by an openaes 
stone-band, gypsum with insect bed and fish bed, and marls with plants, 
fishes, and shells; the whole is capped by calcareo-silicious millstone, 
with Cypris, Cyclas gibbosus, Potamides) Lamarckii and Bulimus 
terebra, and white limestone and marlstone. Insects had first been 
noticed in this locality by Marcel de Serres, and Mr. Curtis’s remarks 
on them are very interesting. Among the shells there are four new spe- 
cies of Cyclas, a new and large species of Unio, also new species of Cy- 
pris, of Planorbis, of Lymnzus, and Melania, principally from the roof 
of the coal of Fuveau. The plants bear more characteristic marks of a 
difference of climate than the insects, being nearly allied to the plants of 
India, the Mediterranean, and the coast of Barbary ; but the specimens 
were in too mutilated a condition, to admit of very satisfactory investi- 
gations. 
Of the Red Pigment called Carucru or Chica. By Jonn Hancock, M. D. 
—Ibid, p. 283. 
This is a fecula procured in the manner of indigo, from a species of Big- 
nonia. The plant producing it is chiéfly found towards the head of Es- 
sequibo, Parima, and Rio Negro, where it is known by the name of 
chica. Thechief manufactory of the carucru is amongst the Tarumas, a 
numerous and industrious tribe of Indians, who inhabit the eastern 
branch of the Essequibo near its source. The leaves are pounded and 
infused in water, till a fermentation ensues. The liquor is next poured 
off, and left to deposit a sediment. This sediment is collected, and forms 
the carucru paint. This ornamental paint, in great demand amongst 
the interior Indians, is confined to chiefs and higher orders: the rest 
decorate their persons with arnotta, or pincer, mixed with the oil of Ca- 
rapa, a portion of which, with the balsam of Aracousiri, (from a species - 
of Amyris,) mixed with these paints, imparts to them a very fragrant 
and agreeable odour. 
Report on the Impression made on the Ground by the Foot of the Sow. By 
Messrs. Rospert SPITTAL and ROBERT STEVENSON JuN.—LIbid, p. 285. 
The authors think that the general conclusion to be drawn from their ob- 
servations is, that the impressions made by the feet of the sow on the 
ground, vary according to the softness, depth, and position of the soil 
over which the animal may have passed ; and though it seems to be true, 
that in general there are four impressions, viz. of the two anterior and 
two posterior toes, still it seems equally true, that the same animal may, 
in certain circumstances, leave a bisulcated impression, or that of the 
two anterior toes only. 
Observations connected with the Migration of the Herring and Mackerel, as 
noticed in the British Channel. By Mason W. M. Morrison.—Tbid, p. 317. 
The author supports that view of the migration of gregarious fish, which 
leads to the supposition, that they do not actually travel from north to 
