A slip from a plant, according to the kind of flower desired, is placed in a flower-pot filled with mould, the bottom of which can be unscrewed and removed at pleasure. As soon as the slip has taken root, and the smallest fibres have sprung from the stem of the plant, the form of the desired flower is made out of a piece of ravine metal as thin as a piece of silk. This metal-flower, after immersion in a solution which attracts the particular electricity to be used, is enclosed in a hollow block of the same metal, corresponding to the flower form, from which it rises in a shape somewhat like that of a funnel, till it ends in a very fine point or orifice as fine and as hollow as the finest hair. This point is inserted in the root of the plant. Underneath the metal-flower form is placed a bag of sympathetic electricity, and the mouth of the bag is so arranged as to fit closely round the form of the metal-flower in such a way that the electricity has no escape but into the hollow metal block and through its fine, hollow point. The metal point, previously to its insertion in the root of the plant, is prepared with a solution to prevent the escape of any of the electricity through its pores. As soon as the bag is opened the electricity is attracted into the metal form, and having no other escape, proceeds instantaneously through the funnel and through the hair-tube into the plant. In doing this, it retains the form implanted by its contact with the metal model, and by the forced passage through which it has become married with another electricity. As soon as it is attracted by the solution with which the inside of the metal is covered, a shock is produced which materially assists the operation, by causing the electricity to imprint itself with greater force and certainty on the embryo plant with which you will recollect the hair-point has been connected. It is essential that the charge should be sufficiently strong to modify or overpower the electricity already existing in the plant, in order to change the form which this would otherwise take; but, at the same time, care is taken that the charge is not too powerful, for in that case, and particularly if an antipathetic electricity be employed, the flower would be instantly killed. The electricity is therefore applied in gentle proportions at first, and then the operation is repeated several times. PRODUCTION OF COLOUR. It is electricity that, as I have said, gives colour to plants. Their varied tints depend on the sympathy or attraction of their electricity to sun and light electricities. Particular parts of the plant, from the nature of their fibre, have the power to attract larger portions than others of the colouring electricities.