Transactions of the Horticultural Society. 191 



27. On the Cultivation of Ginger in a glazed Pit. By Mr. Christie 

 Duff, Gardener to the Earl of Grosvenor, at Eaton Hall, Cheshire. 

 Read January 17. 1826. 



" Fresh roots of ginger are much in request in many fami- 

 lies for preserving, but the usual method of growing them in 

 pots or boxes in a stove affords but a scanty supply." 



In March take some old roots and divide them, leaving one bud to each 

 piece; put these in No. 60. pots separately, and place them on a hot-bed. 

 By the middle of May they will have shot from 12 to 18 inches, turn them 

 out into light rich soil on a gentle heat in a pit, give them abundance of 

 water and very little air. The roots will be fit for taking up in September. 

 " After September, the plants, if left in the ground, begin to decline, and 

 the roots at that time, and under these circumstances, become stringy." 



28. Observations upon the natural Latvs which govern the Produc- 

 tion of Double Flotvers, arising out of a remarkable Case of 

 Preternatural Formation in the Flowers of an Amaryllis. By 

 Mr. John Lindley, F.L.S. &c. &c. Assistant-Secretary for the 

 Garden. Read December 6. 1825. 



In November, 1825, some bulbs of the double Barbadoes 

 lily (Amaryllis crocata), flowered in the stove of the Chiswick 

 Garden, and Mr. Lindley has prepared this paper, not for the 

 purpose of bringing into notice this particular variety, which 

 has not now been introduced for the first time, but for the sake 

 of recording one of the most singular instances of preternatural 

 formation in the vegetable kingdom, and which appears to him 

 to confirm an opinion he has for some time entertained 

 respecting the Jaws which regulate the production of double 

 flowers. This opinion is, that the transformation of the parts 

 of plants follows the same laws as their development; and 

 that when flowers become double, instead of the stamens be- 

 coming corollas, and the corollas calyxes, as is commonly 

 believed by gardeners and botanists, the calyxes become 

 corollas, and the corollas stamens, and the stamens (sometimes 

 at least) ovaria, The paper maybe considered as an ingenious 

 speculation, according with general analogy, and character- 

 istic of the author's philosophic turn of mind, in the deduc- 

 tion of general views from particular facts. 



29. Notes on grafting, budding, and cultivating Garden Roses. 

 By Jean Baptiste Van Mons, M.D. Foreign Member of the 

 Horticultural Society of London. Read May 4. 1824. 



Roses may be propagated by grafting as successfully as by 

 budding. In Flanders cleftgrafting is adopted, and care taken 

 that the scion is of the same diameter as the stock [fig. 56, a), 

 or the cleft in the stock made sufficiently near one side of the 



