united kingdom.

to

104

Class 11L

SUBSTANCES USED AS FOOD.

Moiitlook, Miss.

Specimens of fine English honey.

—■

Class 1Y.

vegetable and animal substances.

117 Vickhrs, Jamks, 2.1 Little Britain —Importer andManufacturer.

Specimens of Russian isinglass, arranged to form aoutlet, The stems are formed with strips from the leaf^'>giass, in its raw state; the flowers and the feather arev?H° lmeils cut isinglass in its manufactured state; the; ' >011 yound the stems shows the isinglass in the toun^ which it is rolled previous to cutting.

* he baskets shown in the engraving are entirely com-* ‘-‘d ot isinglass, and are ornamented with flowers of the

material.—1\ 204*.—Plate 303.

[Uingla ss proper, according to the authority of Pr, Vrc,® P'ocurod from the tissues of the air-hladders of sturgeons,'nicipaliy the great sturgeon, which is fished for on theTi° rCS ^ ie ^' AS P'an Sea and the rivers dewing into it.i * c Reparation of the isinglass in Russia , more particn-w! ? at Astracan , consists in steeping the bladders in‘\tr, carefully removing the outer coat and the bloodhaT 10Ccasi < »ially covers them, putting them in a hempenRu ^J c ‘ c ting them to pressure, softening them betweenure t, an ^ 8 ' un ^ twisting them into small cylinders: they^* Ul1 in the sun and bleached with the fumes ott i ()l UUi 8 *mlphur. It is extensively used for the clnrifioa-sdso ° r c i° ur i n S of wines and malt lbpiors, coffee, &e.;

^ Se ^* n 6 for precious stones by the Turks; and byWhi lK ‘ avl -wovkers for the attachment of the lustreiln ‘tatuu 0mi>ltites thC UkeneSB t0 the ob j ycts of their

fi s ^ : i utor i° r description of isinglass is also obtained from* n ^ ie Perbice, Demerava, and other rivers off «nncrl IUCliCa ’ aml ' ll Kast Indies. Isinglass was\vhjj '^7 ^uufactured by hand by tearing up

or cutting

Cachin'* wrS * ^ * s now » however, rolled and cut by steam

s '>i»pii*l a ." 1 ’ 1K ‘ ars 101,e t,,e

Vl!C(

Uvs . - .. me principal country frqm which

■x-ccivej • ' U ln . <>s,; ^’umlaut, and of the best quality, arci Us rivers and seas abound with the fish from

which it is taken, and skill in its preparation has beenacquired by long practice on the part of those engaged inthe operation of curing.—\V. C. A.]

“Mr. .lames Vickers (117, p. 204") exhibits a richvariety of specimens of isinglass, in the different rawstates in which it is imported, and in all the stages of itspreparation for the various applications for which it issold. The variety of colours of the different kinds andparts of isinglass is exemplified in elegant forms andarrangements of this material.”— Juries’ lieports, p. 105.

“ Mr. James Vickers, for some very finely-preparedRussian isinglass, both in the whole and cut state, whichthe Jury satisfied themselves was of uniformly good qua-lity.”— Juries’ Iteports, p. 07.

140 Bkvi.nutons & Sons, Ncckimjer Mills, Bermondsey ,

Specimens of unmanufactured goat and sheep skins fromSwitzerland and the Cape of Good Hope ; kid and lambskins from Tuscany, and seal skins from Newfoundland ,

An assortment of materials used in tanning and leather-dressing, consisting of—

Ground sumach leaf and branch of sumach tree fromSicily for tanning morocco leather.

Oak hark, cork-tree hark, terra japonica, cutch, mnra-bolanes, valouia, and divi divi, for tanning hides and calfskins.

Al im, salt, flour, and eggs, for dressing gloving leather.

Cod oil and potash for dressing chamois leather.

Alum and hark for dressing leather for gaiters.

Lime and whiting for preparing parchment.

Salt butter, olive oil, mahogany, beech, and rosewoodsawdust, for dressing furs.

Class V.

MACHINES FOR DIRECT USE, Ac.

4 Stothkut, Si.AtiouTKH, & Co., AwmsiVfc Iron ll’orfa,Bristol —Inventors and Manufacturers.

Patent combined propeller engine, patented by EdwardSlaughter. This system, which has reference only to con-densing propeller engines, purports to combine the ad-vantages of a direct-action, quick-working engine, withthose of the indirect slow-working engine. In the latterthe speed requisite for the propeller is obtained by meansof accelerating gearing driving on to a second mol ionshaft. The new engine claims to avoid the disadvantagesof both. It is assumed that, to obtain the best possibleform and angle of screw, it is in all cases desirable togive a speed to the propeller shaft unsuited to the vacuum,supply, and bilge pumps, hut especially to the former j

[OmuiAi. Illustkatki) Oatalouiu:.]

5 M