By Thomas Andrew Knight, Esq. 75 



of practice is approved by Mr. Baldwin.* I nevertheless 

 cannot avoir! thinking it wrong ; for the plants, at this pe- 

 riod, and subsequently, owing to want of light, can ge- 

 nerate a small quantity only of new sap ; and consequently, 

 the matter which composes the new roots, that the plant will 

 be excited to emit into the fresh mould, must be drawn 

 chiefly from the same reservoir, which is to supply the blos- 

 som and fruit: and I have found that transplanting fruit 

 trees, in autumn, into larger pots, has rendered their next 

 year's produce of fruit smaller in size, and later in maturity. 

 I therefore would not remove my Pine plants into larger 

 pots, although those in which they grow are considerably 

 too small. 



As the length of the days diminished, and the plants re- 

 ceived less light, their ability to digest food diminished. 

 Less food was in consequence dissolved in the water, which 

 was also given with a more sparing hand ; and as winter 

 approached water only was given, and in small quantities. 



During the months of November and December, the 

 temperature of the house was generally little above 50°, and 

 sometimes as low as 48°.+ Most gardeners would, I believe, 

 have been alarmed for the safety of their plants at this tem- 

 perature ; but the Pine is a much hardier plant than it is 

 usually supposed to be ; and I exposed one young plant in 

 December to a temperature of 32° degrees, by which it did 

 not appear to sustain any injury. I have also been subse- 

 quently informed by one of my friends, Sir Harford Jones, 



* Baldwin's Practical Directions for the Culture of the Ananas, page 16*. 

 f Subsequently to the time this Paper was sent to the Society, I have been in- 

 formed, that the thermometer was once, in the ]ast winter, so low as 40 degrees. 



