POTTING AND FORCING. 109 



ing ; but when the flower-buds are ready to open, tliis 

 must be contiiied to the stems of the plants and the pots ; 

 otherwise the flowers will be injured by the moisture. 

 Air must at first only be given about noon ; care must be 

 taken to remove the plants from the forcing-house to the 

 green-house or drawing-room before their blossoms ex- 

 pand ; they may then be kept in beauty many days. We 

 have not found the check which the plants receive by this 

 sudden change of temperature at all detrimental. During 

 their second growth, the plants should be watered once a 

 week with manure-water, and the surface of the pot occa- 

 sionally stirred. Two pounds of guano to ten gallons of 

 water forms the very best species of liquid manure ; this 

 should be stirred before it is used. 



" The treatment recommended for roses in a pit with 

 Arnott's stove may be pursued with roses in a house with 

 smoke-flues or hot-water pipes. Ai-nott's stove is recom- 

 mended as an economical and eligible mode of heating, 

 practiced here to some extent with success for several 

 years. On these stoves an iron pan, fitted to the top, 

 should always be kept full of water. Roses may be 

 forced slowly, but with perhaps greater certainty by the 

 uninitiated, by giving air freely and constantly in mild 

 Aveather during the day, keeping the fire constantly burn- 

 ing during the same period, as recommended when keep- 

 ing them closely shut up." 



We have copied the whole of this article, although in 

 a measure a repetition of previous remarks, since it may 

 be interesting to some to know the opinion of so eminent 

 a cultivator on this least understood branch of rose cul- 

 ture. A few of his directions are somewhat different from 

 those we have given before, and may be far better than 

 our own plan, in the climate of P^ngland. Here, an 

 Arnott's stove would scarcely heat a \nt to 70° with the 

 thermometer at zero ; and if it should, we would think it 

 rather dangerous to give so higli a temperature at once. 



