ON THE CULTURE OF THE GENUS CACTUS. 229 



pot, or if the soil be very fine and adhesive. A sudden transition 

 froin a low temperature to a very high one, or the contrary, from 

 heat to cold, will also damage the buds, and render them liable to 

 drop. 



When a plant becomes too high or straggling, it may be safely 

 cut in ; this I always do when it has done blooming. I then 

 place the plant in an increased temperature to cause it to push. 

 When I see the buds pushing, I then repot it into a larger pot. 

 This is a much better plan than repotting at the time of cutting 

 in ; for when both operations are performed together, the plant is 

 sometimes so affected as to die, or only partially to push shoots ; 

 but by the method I practice, I never had the least defect given 

 to a plant. 



The brown scaly insect sometimes attacks the Camellia; this I 

 rub off, and wash the plant with soap-suds and sulphur. When 

 the green fly attacks the ends of the shoots, I apply a sprinkling 

 of diluted tobacco-water. The red spider seldom attacks the 

 plant, but a forcible washing, with the syringe, at the under side 

 of the foliage, destroys this insect. 



As the Camellia will flourish, whether grown in a stove, conscr- 

 \ story, greenhouse, cool frame, sitting room, or in the open air, 

 as freely as a common Laurel, and all the kinds being splendid 

 flowering plants, I hope my remarks will not only lead to a more 

 extended culture of this magnificent and showy genus, but, if 

 trictly followed, I am confident, to a most successful mode of 

 culture. A London Nurseryman. 



Chelsea, July M/A, 1835. 



ARTICLE VI.— On the Culture of the Cams Cactus. 

 By Medicus. 



Observing that information on the culture of tho Cactus is 

 requested in the last number of the Cabinet, page 2t)3, I forward 

 you soma remarks upon the plan I grow and flower them in, in 

 B moi l successful manner. 



Propagation of tk» kinds- This is most easily done with all the 

 lorts 1 cultivate; an onset is taken off, dried for a fortnight^ and 

 then in ;vil'. d in a .mail put in equal portions of lwam and white 



