Nobth Aeeas, G-. H. 47.

Commissioner for the Homan Government, Signor Cablo Teebbi. Agents, J. and R. M'Cracken, 7 Old Jewry.

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It is deserving of notice, that in the Roman collection the first and last sections of the Exhibition are principallythouo-h not exclusively represented—the raw materials and sculptures, &c. Among the former are specimensof siliceous quartz, used for glassmaking; samples of asphalte, alum, &c. Some textile materials are alsoshown, such as hemp, silk, with samples of their manufacture ; there is also a collection of papers made fromflax and hemp. Specimens of bricks and tiles, in imitation of mosaic marble, are likewise exhibited. Amongthe fine arts, the sculptures, cameos in onyx and shell, and the beautiful mosaic-work, will receive muchattention. The vases, candelabra, &c., form also attractive objects.—R. E.

1 Biancoucini, Count Biagio.

Sample of siliceous rock used in the manufacture ofbottles.

8 Ranuzzi, Count Angelo.

Veils manufactured, partly in crape, and partly instripes of various colours.

2 Pasquau, Domenico Rinaldi.

Samples of asphalte, natural and manufactured.

3 Sneideb, Pellegrini.

Pour blocks of natural alum.

[Alum is found native at Tolfa, near Rome , in the formof a crystallized mineral, often of considerable hardness,of compact or earthy fracture, and occasionally in crystalsof some magnitude. The alum of commerce is obtainedby roasting this mineral and afterwards exposing it toefflorescence; it is then reduced to a paste, and afterwardsdissolved and crystallised. The alum thus obtained is ofthe finest kind, the superiority over common kinds beingsaid to be due to an excess of alumina, but it is probablethat the temperature at which the evaporation is per-formed is of more importance than the raw material.—D. T. A.]

Biancoucini, Count.

ample of the product of tow of the Bolognese hemp.

Samples of several woods.

5

Sample of silk.Pine-cones.

Mobti, Signor.

’ Pekretta, Daniele —Manufacturer,

amples of various silks manufactured by the exhibitor.

The Filanda-Bbacci al Fano.Samples of silk.

9 The Chamber oe Commeece oe the Cityop Cento.

Sample of Centese hemp, from the province of Ferrara ,made into sail-cloth, and cords of various sizes.

10 Minghetti, Mabco.

Samples of hemp, and of articles manufactured from it.

11 Bianchini, Lttigi. —Inventor.

A new spring bit.

12 Miliani, Pieteo.

Samples of paper made of flax and hemp.

13 Maechesi, Alessandro & Giuseppe Ossoli.

Samples of bricks and tiles, in imitation of mosaicmarble, manufactured of argillaceous earth from the vicinityof Rome .

[The material of which these bricks and tiles is madeis of unusually fine and even texture, and of great purity.The earth appears to be a kind of pozzuolana, and is ofvolcanic origin. The mosaic work is not much inferior tothat adopted for more valuable material.—D. T. A.]

14 Livizzana, Avo Eecole.

A sample of a work in paper, cut by the exhibitor withscissors only.