For several months past the English and Scotch journals have been giving accounts of an apparatus invented by a Mr. M'Glashan, of Edinburgh, for transplanting trees without disturbing the roots. Several successive trials in Scotland attracted very general attention, and a trial at Chiswick - the head quarters of all horticultural experiments in England - was determined upon. We have avoided giving any account of previous trials, looking to this one before the London Horticultural Society as likely to be reliable and decisive, as well as impartial. Such an invention as this cannot but be regarded with a good deal of interest in America, for we are certainly the most impatient planters in the world. "We extract the following report of the Chiswick trial, and the cuts illustrative of the machine, from the Gardeners' Chronicle :

On Saturday last, in the Garden of the Horticultural Society, Mr. M'Glashen exhibited his apparatus for transplanting trees, in the presence of H. R. H. Prince Albert, attended by Captain the Hon. Dudley de Ros; of Sir Philip de Malpas Grey Egerton, Bart, Sir James Matheson, Bart., and Lady Matheson, Sir Joseph Paxton, Colonel Challoxer, J. M. Strachan, Esq.; C. H. Turner, Esq.; C Devon, Esq.; W. Broadhurst, Esq.; C. Townley, Esq.; C. W. Dilee, Esq.; and many other spectators, among whom were Mr. Ingram, from the Royal Gardens at Frogmore; Mr. Toward, from Osborne; Mr. Barron, Mr. Glendinning, Mr. Osborne, and many such practical men. The object of the inventor of the apparatus was to lift plants from three to sixty feet higb, without disturbing their roots or throwing them out of the perpendicular, and to carry them when lifted to any other place, still retaining their earth and their original position. The principle of the contrivance will be understood from the annexed figure of a small apparatus. - Conceive the plant in this case to be surrounded by a stout rectangular iron frame (a), which is placed upon the ground. Then let the spades b b b bo forced nearly perpendicularly into the soil within the iron frame.

Next suppose an extension rod (c c) to be so applied to the handles of the opposite spades, as to drive them outwards by the leverage at c acting upon the fulcrum (a); the result will be that the ball of earth enclosed between their blades will be converted from a cube into a wedge with the point downwards, by which means the earth becomes secured within the four spade blades. After this a collar is fixed to the stem of the plant, and to the two opposite sides of the iron frame (a), grasping the plant firmly and preventing its slipping. The next point is to attach to the four corners of the iron frame as many hooks (d), through which is passed a pair of handles, such as are used for a sedan chair (e); and then the plant is ready to be lifted, which is done by two or more men raising the plant by its handles. Thus raised, it can be removed to any other place without disturbance, and a hole having been previously prepared, left there by unfastening the collar, withdrawing the spades, and uncoupling the iron frame. • The time consumed in this operation need not exceed ten minutes for an apparatus worked by four men.

In the case just described, the lift is taken by two or four men acting upon a pair of horizontal bearers. But when great weights have to be moved, then mechanical power is applied, as shown in the accompanying representation of the machinery actually employed on Saturday. In this case the frame (a) is of very strong T iorn. The spades (b) have blades three feet long and iron handles; and within the handles passes a bar of iron (d d), to receive the lateral pressure of the extension rods. Two beams of timber (xx), lie across the frame, and hold fast the collar (o c), by which the trunk is grasped. Matters being thus adjusted the mass is ready for the lift, which is managed in the following manner: A pair of strong timber trucks (ff), are backed up to the two ends of the frame, each having above its axle a powerful wooden upright (y). Upon this is laid a frame or platform of timber (g) through which pass vertical screws (h h), attached to a powerful iron coupling, and working in collars secured to the platform. The screws are finally connected with the lower apparatus which secures the roots of the tree by chains passed through the couplings. This done the machine is ready for work. The lift is taken by means of the screws (h), which are worked by men standing upon the platform.

When the mass is raised out of the ground the trucks are chained together, and may be moved in any direction required. On one of the trucks a crab (i) is shown; this is for the purpose of moving the machinery by means of a block and tackle secured to some tree or post, when circumstances are favorable to its employment.

The tree, earth, and machinery moved on Saturday were computed to weigh something more than thirteen 'tons. The tree, a black Italian Poplar, was fifty-five feet high. In half an hour the tree was lifted out of the ground, without swerving; and in the course of the afternoon was safely drawn to a hole forty feet off, into which it was so lowered as to be placed perpendicularly, although when taken out of the ground it was very considerably out of the upright Had the tackle been better, far less time would have been consumed; but the screws were bad and difficult to turn, and the horizontal arms by which they were worked were inconveniently placed, all which caused a needless waste of time.

The spectators admired the principle of Mr. M'Glashan's plan, and were gratified at the successful manner in which his work was done. For ourselves, we are disposed to believe that this method of transplanting is susceptible of modifications which will render it generally useful. The inventor desired to test his power as severely as was possible, and for that purpose he selected a tree very much larger than it is often necessary to remove. The world, in general, requires a smaller and less cumbrous apparatus; which can, of course, be constructed with strength proportioned to the weight that has to be lifted. For example, a pair of strong barrows might be substituted for the timber drags, everything else being reduced in proportion; or the apparatus need not be stronger than can be worked by hand labor; and this it was evident that the gardeners thought would be most generally required.

The advantages of the apparatus consist in lifting a tree and keeping it upright while being transplanted, instead of being broken and bruised by being thrown on its side, as is invariably the case in all other modes of transplanting; and in preserving the earth round the roots, either wholly or for the most part A good deal of earth, no doubt, fell out on Saturday from within the spade-blades, owing to the excessively soft, wet state of the soil; but Mr. M'Glashan, in his specification, expressly declares that in some cases, in order to prevent the crumbling away of earth, it is necessary to enclose in a wooden box the lower part of the apparatus after it is lifted.

The objections to it may be stated to be the necessity of cutting through all roots which spread beyond the area enclosed by the spade-blades; but we think that very little ingenuity will get over this difficulty, even if increasing the size of the apparatus should be impracticable. A greater objection is the inability of spade-blades, driven perpendicularly, to pass through gravel; and, unless forks are substituted for brood blades, it is not clear how this is to be surmounted. It is to be remembered, however, that Mr. M'Glashan's apparatus has never y~* ***JMi applied to practical use; and we entertain no doubt that it will receive very important improvements as soon as it comes into the hands of those who are conversant with the removal of trees.

Since the above was written, we have been informed that a machine similar to Mr. M'Glashan's was contrived some years ago by Mr. Strutt.

M'Glashan's Transplanting Apparatus #1

We read in the Moniteur as follows:-Some new experiments with a machine for transplanting trees, invented by Mr. Stewart M'Glashan, took place at St. Cloud, by the desire of his Majesty the Emperor, who wished the first trial to be made in the Bois de Boulogne, in order that her Majesty the Empress might honor it with her presence. M. Mathieu, head of the gardens of St. Cloud, directed these experiments, which were as successful as the preceding one. It was tried upon a tree of about thirty feet high, and more than twenty inches in circumference, which even a force of twenty horse power could scarcely have raised from the ground, supposing the preliminary operations all complete, such as removing the earth from around the roots, in order to facilitate the transplanting of the tree. The tree in question was an Acacia, naturally firmly fixed in the soil, its straight roots offering a great resistance, which must have subjected the machine to a very hard trial Twenty minutes sufficed to uproot and replace the Acacia in its former hole. The principle of Mr. Stewart M'Glashan's machine was so powerful that with an apparatus of reasonable dimensions it would be possible to remove the largest trees, such for example as the Elms and ancient Chesnuts of our public promenades.

A third experiment was tried under the direction of M. Mathieu at villeneuve l'Etang near St Cloud, upon an Apple tree, which was very difficult to transplant, but the attempt proved perfectly successful. - Gardeners' Chronicle.