As this subject has of late been considerably discussed in various horticultural journals, I am tempted to offer my mite of experience on what seems to roe a much more simple matter than most of those who discuss the subject would lead us to suppose.

After many years of extensive practice, I have arrived at the conclusion that cuttings of almost every plant cultivated by the florist or nurseryman will readily and uniformly root, if the proper conditions of temperature and moist- ure are given them. It matters little or nothing how the cutting is made, or what may be the color or texture of the sand or soil in which it is planted; these have little or nothing to do with the formation of roots. But an absolute condition of invariable success is uniformity of temperature and moisture. To attain this uniformity, the structure of the house is of vital importance; and it is owing to the erroneous construction of buildings for this purpose that so many have to deplore their want of success. 1 will briefly describe the construction of the propagating pit we have in use, and the manner of operations, which will best explain my views on the matter. The pit, which faces north, is 65 feet in length by 8 in width, and 8 feet high at back by 1 in front, the pathway being dug out to give head-room in walking. The front bench is 3 feet wide, walk 2 feet, and back bench 3 feet.

All along the front bench run two wooden gutters 9 inches wide by 3 inches deep, the water in which is heated by a small conical boiler connected by two pieces of leaden pipe to the gutters. Three inches above the water in the gutters is placed the slate or flagging, (resting on cross slats of wood,) on which is two inches of sand. By regular firing we keep a temperature in the sand from 55 to 75; and as the pit has no other means of heating, except that given out by the sand in the bench, the atmosphere of the house at night is only from 40° to 50°, or 25 degrees less than the " bottom heat." In the daytime, (in order as much as possible to keep up this disparity between the "top" and "bottom" heat,) a little air is given, and shading the glass resorted to, to enable us to keep the temperature of the house down. And here let me remark, that when propagating is attempted in green-houses used for growing plants, (such houses facing south or southeast,) the place usually used for the cuttings is the front table; and it being injurious to the plants to shade the whole house, that part over the cuttings alone is shaded; the consequence is, that the sun, acting on the glass, runs the temperature of the house up, perhaps, to 80, or above that of the bottom heat, the cuttings wilt, and the process of rooting is delayed, if not entirely defeated.

All gardeners know the difficulty of rooting cuttings as warm weather comes on. When the thermometer marks 80° in the shade fires are laid aside; and if the rooting of cuttings is attempted, the sand or soil in which they are planted will be 10 or 15 degrees lower than the atmosphere, or the opposite of the condition required for success.

The advantage possessed by the gutter or tank, as a means of bottom heat, over smoke flues or pipes, is in its giving a uniform moisture, cuttings scarcely ever requiring water after being first put in, and then only to settle the sand about them. Still, when this convenience is not to be had, very good success may be attained by closing in the flue or pipes, regularity in watering, and a rigid adherence to these degrees of temperature.

The propagating pit above described is used for the propagation of all kinds of plants grown by florists, such as Camellias, Dahlias, Roses, Verbenas, Fuchsias, Grape-Vines, etc. The time required in rooting cuttings of soft or young wood is from seven to ten days. Last season, during the month of February, we took three crops of cuttings from it, numbering in the aggregate forty thousand plants, without a loss of more than one per cent. In fact, by this system we are now so confident of success, that only the number of cuttings are put in corresponding with the number of plants wanted, every cutting put in becoming a plant.

In this narrative of our system of propagating, Mr. Editor, I have not attempted to theorize. I give the plain statement of operations as we practice them, thoroughly believing that the want of success in every case must be owing to a deviation from these rules. Ignoring entirely most of the maxims laid down in the books, such as "use a sharp knife," and "cut at a joint," we use scissors mostly in lieu of a knife, and we never look for a joint, unless it happens to come in the way. We are equally skeptical as to the merits of favorite kinds and colors of sands or other compounds used for the purpose. Of this we have reason to be thankful, for a nicety of knowledge in this particular in the head of a scientific (?) propagator may sometimes become an expensive affair.

A friend of mine, a nurseryman from the far west, deeply impressed with our superior horticultural attainments in the Empire City, hired a propagator at a handsome salary, and duly installed him in his green-house department; but, alas! all his hopes were blighted. John failed - signally failed - to strike a single cutting; and on looking about him for the cause, quickly discovered that the fault lay entirely in the sand! but my gullible friend, to leave no stone unturned, freighted at once two tons of silver sand from New York to Illinois! Need I tell the result, or that John was soon returned to where the sand came from?

[Mr. Henderson's "mite," as usual, proves to be "a big thing." A good propagating house, facing north, with a good hot water tank, giving a moist, uniform, and lasting heat, some twenty degrees above the temperature of the house : these things are all consonant with sound philosophy, according to our apprehensions, and success would seem to be fully insured. But what do the "knowing ones" say to Mr. Henderson's method of preparing cuttings and propagating generally? It is manifestly intended for them. We see something in it, but leave them to speak first. What do you say to it, John? We hope you have got that sand out of your eyes now, and can see your way clear. - Ed].

Propagation Of Plants #1

The different modes of propagating plants may be classed as follows, namely:

Propagating by seeds. n " cuttings.

" " layers.

" u suckers and division of the roots.

u " budding and grafting.

These methods may be subdivided into

Cuttings of ripe wood.

" " green wood.

" " the leaves.

" " the roots. By layers of ripe wood. " " " green wood. Grafting with ripe wood.

" " green wood.

" by inarching and approach.

All the known species and varieties of plants may be multiplied by some one of these methods, and some can be readily propagated by each and every one of them. But there are certain principles which serve as a guide to the propagator in the different modes of operation that it is well to understand before proceeding to the more practical part of the subject. Although when the great diversity of character as well as the vitality of plants is considered, it can not be expected that any general rule can be given that will be applicable to every case or altogether faultless, yet for the purpose of dispelling that mystery with which the novice often supposes the various modes of propagation to be surrounded, I shall give a brief synopsis of the general principles connected therewith, together with some of the more common methods of their application.

Propagation Of Plants #1

Good. I am glad to see Mr. Fuller's pen engaged in a series of articles on this subject, for he is practically capable, and while he will be minute, he will not give us words for the sake of writing. Readers of the Horticulturist have reason to rejoice at this promise for their improvement.