140 MISCELLANY OF NOTES AND CORRESPONDENCE. 



clothed from the edge of the pot to the summit with a regular arrangement of 

 blooming shoots. Occasional pinching off the points of the leaders or laterals 

 will be necessary to effect the purpose, but with such attention any desired 

 form is readily obtained. When required to bloom in winter or early iu spring, 

 it takes about five or six weeks from beginning to push till they are in bloom, 

 and by regular introduction a constant succession from Christmas to July may 

 be had. Some excellent articles on the Calceolaria are inserted in the volumes 

 for 1843, 1844, and 1845, to which we respectfully refer our correspondent.] 



On heating a small Greenhouse. — You will greatly oblige me by informing 

 me, in the next Number of your instructive and excellent work, whether it is 

 indispensably necessary that a small greenhouse which I am about to erect 

 should be heated during the winter, in order to preserve the plants therein. It 

 will be upon a very small scale, and I do not mean to attempt to grow any but 

 such plants as I have been in the habit of having in my house. I am told, 

 however, that unless I am prepared with some means of heating the greenhouse 

 in the severe frosts of winter, I have no chance of preserving my plants. This 

 will add a good deal to the expense, and I am unwilling to incur it unless I am 

 well advised of its necessity. By doing so you will greatly oblige 



A North Country Subscriber. 



[In our Magazine for February, 1840, a correspondent informs us of a very 

 cheap and effectual plan he had adopted in heating a Greenhouse, which he 

 recommended with the greatest assurance of success. It consists simply of a 

 Jire-brick stove, on the same principle as Dr. Arnott, with a cast-iron top and 

 air-tight doors. He found it distribute the heat much more equally than an 

 iron one. A stove of this description, 2 feet by 17 inches, and 3 feet high, is 

 sufficient to heat a large greenhouse, requiring no chimney, a small pot tube 

 being quite sufficient, and only consuming a peck of cinders per day. It requires 

 a valve in the bottom door, by means of which the heat may be regulated to any 

 temperature. We find Mr. Rivers, nurseryman, of Sawbridgeworth, has long 

 used the iron Amott's stove, but recently has erected the fire-brick ones, and 

 even finds them succeed admirably for forcing houses for his Roses. To prevent 

 dust arising from clearing away ashes, &c, the boy sprinkles them over first 

 with water, so that no injury arises therefrom. Upon the top of the stove a pan 

 is placed, the size of the square, a few inches deep, so that when it is necessary 

 to have a moist atmosphere water is poured into it, and being heated thus be- 

 comes serviceable to vegetation. A stove of this kind would only cost about 

 from 20s. to 30s., and would serve for a generation. Our correspondent would 

 only require, as we understand, to keep out frost, and occasionally dry up damp, 

 so that this kind of stove would answer most fully every purpose, and be a very 

 trifling cost. Its erection in the greenhouse may be made ornamental, and 

 should be placed near the front, so that the heat may be properly distributed.] 



Roses. — One of your correspondents inquires how the Crimson Hybrid China 

 Rose " Fulgens " is made to flower ? Simply by using the knife very sparingly 

 in the pruning season. If you cut back the Hybrid Chinas, as you ought to do 

 ordinary Roses, many, and especially Fulgens, will not flower the next season. 

 I did not discover this for some time, and obtained an amazing growth of wood 

 without any flowers ; since I have shortened the shoots of the preceding 

 summer about one-fourth part only of their length, I have found this rose 

 bloom as freely as any. The best mode of training this rose and its brethren, 

 Beauty of Billiard, Brennus, Legouve, Triomphe d'Angers,&c, all splendid free- 

 growing roses, is to get them standard high, and place against them an iron stake ; 

 the feet made square and flat, and eighteen inches long ; the stake branching 

 off at the top, in the form of a cross, so as to support an iron ring, three feet in 

 diameter, which should stand about two or three inches lower than the head of 

 the stock. At the winter pruning, a sufficient number of the shoots must be 

 brought down all round the circle, and tied with tar twine. These roses, thus 

 treated, will present magnificent heads of flower the following summer. 



Rosa. 



