Whether an apple tree grown from a cion cut from a bearing tree, will come into bearing at an earlier stage of growth, than from a cion taken off a young nursery tree, we do not pretend to know, though our opinion is the negative. We are inclined to think, however, that for top grafting large trees, cions from bearing trees will fruit the earliest. There appears to be little or no definite information upon this subject, but should our life be spared four or five years longer, we hope to gather more light than we now have upon it, for we have both experiments well under way.

For propagating the grape under glass, it matters little what the style of structure for the purpose may be. We have not the space to spare in this connection for the necessary details of either structure or propagation to ensure success in the business. We advise you to procure a copy of each of Woodward's Graperies and the Grape Culturist, both small works, but very complete upon the structure of graperies, propagation and other matters pertaining to grape culture in general.

Not claiming to be much on indoor floriculture at best, and having experienced like difficulty in propagating the Carnation mentioned by our correspondent, we have called in the assistance of our friend, J. Cochrane, of Havana, 111. (the best authority we know of), in answer. Having an innate love for the beautiful in nature, Mr. Cochrane made the culture of flowers a mere pastime for many years before ever conceiving the idea of making the business a source of income. Mr. Cochrane will soon favor our readers with an article in three parts on the Mechanical Construction of Plants, a subject he is eminently qualified to handle. In reply to our correspondent concerning the propagation of the Carnation, Mr. Cochrane writes:

What there is peculiar in the combinations in the elements in which your cuttings are placed that prevents them rooting, it is impossible to say. My own experience is as follows, and though the Carnation does not strike root as quick as some other plants, it does so in less time than others.

The soil of use in which to strike cuttings, is an enriched sandy loam that has had quite an amount of wood ashes added, which I regard as beneficial only after the callous is formed, and then it is a powerful stimulant. Before the roots strike the soil is only a medium to hold moisture. The Carnation wants less heat than a majority of plants, hence I place them in a cool part of the bench and as near the glass as convenient, that the tops may be somewhat cool and held in check while the roots form in the moist earth. In this situation they root in three or four weeks. First pot them in small pots and set in the coldest part of the greenhouse. I use only the strongest shoots for cuttings and nearly all root. Allow no decayed leaves, give plenty of air.

The Dianthus family are natives of Europe, and will not prosper well in hot, dry soils. The D. Caryophyllus is the parent of the carnation branch of the pink family, which are divided by florists into three classes, viz., Flakes, Bizarres, and Picotees, and these have been again divided and subdivided by florists, ad libitum, ad infinitum. Some have recommended its propagation by layers; this is not the best way. A beautiful provision of nature is that if a plant is perpetuated by cuttings with difficulty, it can be freely increased some other way, as the Smilax from seed, Bouvardias from root cuttings, etc.

Remarks #1

What our correspondent says of Miller's Daily, in Ohio may all be true concerning it there, but won't do for Iowa, so far as one year's trial goes with the plant in our grounds. The main crop was quite up to Mammoth Cluster, along side of it, with but little fruit after - so little indeed that we should scarcely class it among the so-called Everbearers. As to its origin, the claim of its being a seedling of the " Ohio Everbearing," differs from the account we have of it from one who ought to know, and from which it may be inferred is a chance seedling.

Remarks #2

We regret that Mr. Hammond's note did not reach us in season to make the correction before the February number went to press.

Remarks #3

The Mountain Laurel is found growing so plenty in the hill and mountain pastures of the New England States as to be regarded as a nuisance. In our early days, attempts' used to be made to domesticate it, by transplanting from its native hill-sides, but it seemed no more inclined to civilization than an Indian from the wilds of the Rocky Mountains. If it can be successfully transplanted, or repro. duced from seed, we should like to know how the thing is done. It is a desirable plant on account of its delicate foliage and charming fragrance.

Remarks #4

1 Pretty fair size, but not so smooth as some.

2 Abundant bearer, fair size, and pretty smooth.

3 Medium.

4 Very smooth, good bearer, but rather small.

5 Nothing to recommend it.

6 Nothing to recommend it.

7 Late, very fair size, and generally a good bearer.

8 Very pretty striped, fair size, and medium bearer.

9 Very good.

10 Cracks badly when ripe; about same size and quality as Early Smooth Red.

11 Nothing to recommend it.

12 Yellow, fair size, pretty smooth, and very good quality.!

13 Very good; late.

14 In field cultivation was next to Trophy, and nearly as early as Smooth Red.

15 Nothing to recommend it.

16 Yellow; nothing to recommend it.

17 First planting destroyed.

18 Very good.

19 Plants injured by cut-worms; two plants entirely destroyed. 20 Did not grow very well.

Remarks #5

We have the High-bush Blueberry growing upon our grounds, high dry soil, from plants brought from the pastures of New Hampshire some years ago, where it seems adapted to both wet and dry land. The plants may be grown from seed. We do not suppose they are to be found on sale at any nursery.