EXPERIMENTS IN THE CULTIVATION OF THE PINE- APPLE. 73 



and it suits many others equally well. In a general way it may 

 be used for the same purposes and the same classes of roses as 

 the Crimson Boursault and Manettii : it is very inferior to the 

 latter, which must take precedence of all. 



Due Decazes is a vigorous growing Hybrid Bourbon, having 

 many good qualities to recommend it, namely, free growth, firm- 

 ness, and solidity of wood. I have seen Bourbons, Chinas, and 

 many Teas and Noisettes succeed admirably on it. 



Rosa indica, or Monthly, I have already noticed. This is 

 suitable for delicate Teas, Chinas, &c. ; and if they were more 

 extensively cultivated on this or on their own roots, amateurs 

 would not have so frequently to lament their losses. 



Blush and other Boursaults I notice merely in order to caution 

 growers against using them : they are at all times extremely 

 subject to mildew, and when worked are liable to decay ; indeed 

 they but seldom grow well. 



The old rose, Ornement de Parade, is sometimes employed as 

 a stock in nurseries ; it has very little to recommend it, conse- 

 quently the sooner its cultivation for that purpose is discontinued 

 the better. 



I have offered these few remarks on Rose stocks with the view 

 of drawing attention to the subject, because of the indiscriminate 

 manner in which stocks are used for Roses. If we could but 

 induce our great rose-growers to give us the result of their ex- 

 perience, a correct knowledge of this favourite flower would be 

 speedily diffused, and those mistakes (the unsuitability of stocks) 

 put an end to. 



IX. — Some Experiments in the Cultivation of the Pine- 

 Apple on Hamilton's System. By Robert Reid, C.M.H.S., 

 Gardener to Mrs. Clark, Noblethorp, Barnsley. 



(Communicated Nov. 8, 1849.) 



As all attempts to cultivate Pine-apples on Hamilton's system 

 have hitherto been chiefly confined to the Black Jamaica variety, 

 I was anxious to ascertain what success would attend the grow- 

 ing the Queen, Providence, &c, on that plan. I had a pit to 

 spare in every way suited for the purpose. It was heated with 

 hot-water pipes and with tanks for bottom heat, and it could be 

 regulated to any necessary degree of steady temperature. About 

 a foot in depth of leaves was put over the rubble on the hot floor, 

 then another foot of half leaf-mould and half turfy loam well 

 mixed together. In the latter end of March I filled this pit with 

 strong well-rooted young suckers of Queens (Ripley and Moscow) 



