372 Joyce's Apparatus for heating by Steam, 



being about to prune some roses in pots, a new idea struck me. 

 This was, that, instead of pruning them on the old system of 

 leaving only two buds of that years' growth (which is by far the 

 best method with flower-garden roses), I would leave two pro- 

 minent good buds, wherever they could be found ; so that after 

 pruning, some shoots had five or six buds left, though generally 

 when they were put into heat only the two upper buds upon 

 each shoot started. I have had one cabbage Provence rose with 

 30 blossoms upon it, and several moss roses with 20, and the 

 plants only two years old ; and not one has been turned out of 

 the forcing-house without plenty of bloom. When all the roses 

 have done forcing, I intend cutting them down to two buds, to 

 which I have always cut them down in November, upon the old 

 system, in order to make their summer wood ; so that I hope 

 every practical person will see the decided advantage of my new 

 mode. I will go so far as to say, that it is quite wrong to go on 

 forcing plants in pots the whole year round, not excepting roses, 

 after they have stood one year in pots, to form their balls. Lil- 

 lies of the valle}', also, will do no good whatever if kept in pots ; 

 the only way to have a full pot of blossom is, to take them up 

 in autumn, and pot none but those that have good buds, and 

 then you will have a fine bloom about the end of May. I intend 

 planting out every sort of forcing plant I have got, and giving 

 it a fair trial. 



Durham Park Gardens, April 5. 1838. 



Art. VI. Notice of Mr. Joyce s Apparatus for heating by Steam; 

 luith an Account of his Method of forcing Strawberries. By 

 Thomas Joyce, Market-Gardener, Camberwell. 



In the first week of June last, we called on Mr. Joyce, at his 

 market-garden in Camberwell, New Road, in order to see a 

 mode of heating by steam which he has invented, and for which, 

 he informs us, he has taken out a patent. According to this 

 mode, a charcoal fire is made in the centre of the boiler of water, 

 and the vapour from the charcoal is conveyed away in the same 

 tube which carries the steam from the water round the house. 

 The steam condenses in the tube, and the condensed water is 

 all returned to the boiler ; while the vapour of the charcoal is 

 allowed to escape at the extreme end of the tube. The boiler, 

 which is portable, and made of copper, occupies a very small 

 space ; and being placed within the house, and isolated, none of 

 the heat generated by the fuel can, by any possibility, be lost; 

 for even the heat that escapes at the farther extremity of the 

 tube, along with the vapour, is still given off to the atmosphere 

 of the house ; and, however deleterious it might be for human 



