DECEMBER. 



175 



good drainage. At Longleat, the seat of the Mar- 

 quis of Bath, they flourish amazingly under the 

 following treatment, communicated by Mr. March. 



SIR, 



According to your request, I forward to you the 

 treatment of the Citron tribe as practised at this 

 place. 



Time of potting, March or April, as circum- 

 stances admit ; at which time we remove a portion 

 of the old soil and set the matted roots at liberty. 

 Give such plants as are in a good healthy condition 

 a shift into a larger pot or tub. When any assume 

 a sickly appearance, we pot in a smaller pot, and 

 they soon recover. 



Water. — This is given with a sparing hand 

 until they have filled the new soil pretty well with 

 roots, at which time it is given more liberally. 

 Syringe twice a day when the weather is fine ; this 

 gives them a fine green foliage. 



We expose them to the open air in a sheltered 

 situation for about six weeks in the most settled 

 part of summer. 



A top dressing of sheep's dung, when taken in, 

 is of much benefit to this genus. 



Observe to keep the trees free from insects ; it 

 will demand constant attention to effect this. A 

 mixture of the alkaline extract is a good pre- 

 ventive. 



