THE NEW-YORK EXHIBITION ILLUSTRATED.

Of the beautiful articles made of papier maehe wehave selected for this page five objects from the contri-butions of Messrs. Jennens <fc Bettridge, of Birminghamand London. These gentlemen are the largest manu-facturers of papier maehe in England, and duungthe fifty years of their establishment, their enterpriseand taste have introduced many improvements, andgreatly extended the trade, by adapting this materialto an endless variety of useful and ornamental objects.

An Ink Stand, a Tea Caddy, a highly ornamented Screen,and parlor Chair and Table, which we engrave, will

illustrate the variety of the works which they produceThey were awarded a prize medal at the Exhibition of 1851.

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The process of inlaying papier maehe with pearl wasinvented by Messrs. Jennens & Bettridge, and patentedby them about twenty years since. It is quite a simple

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and easy process, and does not consist in cutting out thematerial for the insertion of the inlaid substance, as thename indicates, but the pearl is held by adhesion only.

It is done in the following manner:—the article to be orna-mented is covered with a thin coat of copal or othervarnish, which serves to retain in place the pieces of

pearl, previously cut into the required sizeand shape from the nacre of shells. Whenall the pieces of the design have been laid

on, repeated coats of tar varnish are ap-plied until the interstices are completelyfilled, and the pearl covered. The article

next ground with a pumice stone until the extraarmsh is removed, and a uniform surface p ’ ,

exposure of the design. The surface is P,. „

e d with a rotteh-stone, and finally finished by? p polishing by the hand. The process of gem8 another invention by the same firm, which yRecently patented.

, r bhe Pistols which commence andond this page, present another varietythe repeating arms, for which Amer-°a has become famous. They are manu-actured by the Massachusetts Armscnipany, at Chicopee Falls. The up-one particularly is very beautifully? Is bed. The chief peculiarity of theseP stols consists in the Maynard Primer,nose arrangement will be seen in the

engraving.

ch ^ ne these strips, containing fiftyarges, is coiled up and placed in a ma-Sazine in the lock, and is fed out, by the°tion of the lock, one charge at each

time the hammer is raised. When the hammerdescend s it cuts off and fires the charge fed outupon the vent or cone, thus igniting the cartridgewithin the barrel.

The detonating material of the “MaynardPrimer ” is in the form of little lozenges, each about

one-sixtli of an inch wide, and one-thirtietli of aninch thick. These lozenges are inclosed betweentwo narrow strips of strong paper cemented toge-ther, and rendered water-proof and incombustible.The single strip thus formed is a little less than one-fourth of an inch wide, is very stiff and firm, andcontains four of these lozenges (each of which is acharge) in every inch of its length ; the chargesforming projections, of their own shape, on oneside, having considerable and equal spaces betweenthem; the other side of the strip being one flatand even surface.