The visitor to London cannot fail to remark the extensive electrotype manufactory of the Messrs. Elkington. This firm employs about five hundred workmen, executing the designs of the best artists of the day. Their warehouses are found in Dublin, Edinburgh, and all the large towns; the ' firm is understood to have made a very large fortune.

Electrotype is one of the most valued gifts which science has conferred upon art, since it brings, like Parian, the most magnificent works, such as formerly only the most wealthy could obtain, within the reach of all lovers of the beautiful. The artist has attempted to portray one of, their imitations of flowers in the accompanying pic- -ture, which we give as an example in "our line." The art is practised in America, but we believe not so extensively as in England.

CULTURE OF THE TROPCEOLUM TRICOLOR.

It has been remarked, that the roots of this plant are developed with much more rapidity when they are simply laid upon the surface of the soil than when they are planted. It is equally well known, that it is very advantageous to the frail and delicate roots of this species, to place the pot which contains them in another pot. In this way is avoided the necessity of their running at large, as would be the case without that, The exterior pot preventing the sun's action being felt on the inside one, the roots are kept much fresher than in ordinary cases, with a less amount of earth, a speciality very important in the culture of this plant, and of all those which are remarkable for the smallness and delicacy of their roots. In short, in ordinary culture, to prevent these plants from being too strongly heated, or too quickly dried by the heat of the sun, water is frequently given fully on the sides, and thus they are in great danger of suffering by excess of dampness. - Flore des Serres.