The directions given last month respecting the airing and temperature of the house, may still be followed, differing only in admitting air more freely as the season advances, and according to the power the sun has on the glass, which now begins to be considerable.

If the weather is tolerably mild, air may be admitted in time of sunshine, so as to keep the mercury as low as 45°, but be cautious in cold, cloudy, frosty weather. It is a practice with many in such weather to keep the shutters on the house night and day, for the space of a week, and sometimes more, never entering it; and, when the weather has induced them to look in, they find that the frost and damp have made many lifeless subjects; whereas, had the house and plants been attended to, in taking off the shutters, and giving a little fire when requisite, all would have been in safety, and many that cannot be replaced still in the collection.

When watering, strictly adhere to the directions of last month, except with Geraniums, and other soft wooded plants, which require a little more water toward the end of the month. If the days are mild and sunny about eight or nine o'clock in the morning, all the plants would be benefited by a gentle syringing, which retards the progress of insects, and accelerates vegetation.

Succulents, such as CÁctus, MesembryÁnthemum, Aloes, FurchrÆas, CrÁssulas, CotylÈdons, &c. will very seldom need water, at the same time keep them from getting as dry as powder.

OF ORANGES, LEMONS, &c.

Similar treatment to that recommended last month will do for this. Where the soil in the tubs or pots requires to be enriched, take of bone dust or shavings, and fresh sheep dung, equal quantities; put the mixture into a large tub or barrel, until one third full; and fill it up with water. Stir it well two or three times every day for a week, then give each tree one good watering with the compound. Continue to mix up afresh, and let it stand another week, and so on until all the trees requiring it are watered. This watering will greatly enrich the soil, and invigorate the roots.

OF CAPE BULBS, &c.

The bulbs, of FerrÀria undulata and F. antherÒsa, that were taken out of the pots in October, will now require to be planted. Five inch pots will be large enough for good roots. The grand criterion for planting bulbs is when there is a protuberant appearance about the bottom, or root part of the bulb, showing, by a principle of nature, the true time for transplanting. When bulbous roots of any description appear above ground, they ought to be placed in an airy situation. They are very frequently placed under other plants, by the inexperienced, until they show their flowers, and then brought to the light, having weak flowers, and comparatively of momentary existence.

Hyacinths, Narcissus, GladÌolus, Ixia, &c. having flower stems, ought to have support, to prevent accident, especially the two former; keep them nigh the glass, and water freely. Change the water regularly in the bulb glasses, observing that their roots are never allowed to become matted with foetid water. Any of the above plants that are in flower, might, if desired, be taken into the drawing room or parlour, washing the pots clean, and putting saucers under them, keeping therein a little water. Twice a week the decayed ones can be taken out, and supplanted with those that are coming into bloom.

CAMELLIA JAPONICA

Will, in this month, show a profusion of flowers; and, where there is a variety, they have truly a magnificent appearance. From a good selection, endless varieties, by seed, of exquisite beauty, might be obtained by attention to the following rule. The best to select for bearing seed are Single white, Atoniana, Grandiflora, Waratah, Carnation Waratah, Fulgens, and, in many instances, the pistil, or pistillum of Variegata, Pompone, PÆoniflora, and Intermedia, are perfect, with several others. When any of the above are newly expanded, (Waratah is most perfect about one day before expansion,) take a fine camel hair pencil, and put it gently on the farina or pollen, which is a yellow substance on the anthers, and, when ripe, appears in thousands of small particles. Take the finest double kinds, then, with this on the pencil, rub lightly the stile of those intended to carry seed. Between the hours of ten and twelve in the forenoon, is the most proper time for the operation; the seed will be ripe in September or October, which will be taken notice of, and directions given. For other particulars on cleaning and syringing, see January under this head.

OF SHIFTING &c.

The best time to repot Camellias, is just when they are done flowering, which will be before they begin to grow. There are, though not frequently, some flowers after the young foliage begins to appear, and probably it would be better to discriminate the time by the buds offering to push, which will answer to those that have no flowers, as well as those that have. The most general time in shifting Camellias is in August and September, indiscriminately with other plants; and, if then not very gently handled, bad roots eventually are produced. Frequently very fine plants have been killed by probing, and breaking the young fibrous roots, thus causing mortification.

In the process, do not, by any means, break, or bruise any of the roots: and do not give large pots, with the idea of making them grow fast: it acts on most plants diametrically opposite to what is intended. A pot one or one and a half inches wider and deeper than the one they have been in previously, is sufficient. Healthy plants under five feet will not require shifting oftener than once in two years; from five feet upwards in three or four years, according to the health of the plants. This treatment, in the opinion of some, will appear not sufficient: it will be found enough with a top-dressing every year to keep them in a healthy, flowering condition, the soil being according to our description.

On turning the plant out of the pot, it may easily be observed if the soil has, in any degree, been congenial to it; for if so, the roots will be growing all round the ball; if otherwise, no roots will appear.

Therefore, with a blunt pointed stick, probe away all the bad earth, until you come to the roots; then put the plant in the pot about one inch in diameter, larger than the combined roots, previously putting a few small pieces of broken pots, or clean gravel, to drain off the superabundant moisture, and give light waterings, as the roots in this case will grow but slowly.

Top dress all that requires shifting, probe out the soil down to the roots, and by the side of the pot, taking care not to break the fibres; then fill up with fresh earth, watering gently with a rose on the watering pot to settle it.

OF CLEANING, &c.

If any of the plants require cleaning, either by fumigation or otherwise, let it be done before the young foliage appears, according to directions heretofore given. Likewise tie neatly all that require it, clean and top dress those that will not be shifted, having every plant and all in the Green-house, in perfect order, before the throng of spring commences. The weather will now admit, in very fine mornings, of the plants being syringed, which may be done between half past seven and half past eight: and the path or pavement should be washed out once a week, which is a great improvement to the appearance of the whole interior.

In winter whenever any glass is broken it should be immediately mended. Broken glass in cold nights causes a very destructive current of air. It should always be made water tight, for if the drops fall into the pots upon the roots, they will frequently prove fatal to the plants; therefore care ought to be taken during rain to remove those that stand in any manner exposed.