238 MANAGEMENT OF VINES, &C. 



house by flues or pipes will be very essential 

 after the first week or ten days of the house 

 having been heated by the bark bed ; the fires 

 should be made every evening, and kept up till 

 nine or ten o'clock to warm the air of the house 

 till morning, when it will be necessary (particu- 

 larly if there be no bark bed) to revive the 

 fires, and in cold weather continue them the 

 whole day moderately ; but when the season is 

 more advanced, and the sun becomes powerful, 

 the fires may be discontinued after the morning, 

 until the evening, and thus the heat may be 

 managed till May, or later, if the weather proves 

 cold, or be guided more especially as the fruit 

 appears to ripen, generally keeping up the tem- 

 perature equal to the pine stove ; when the vines 

 begin to break, or rather the shoots begin to 

 put forth, give air moderately in the middle of 

 warm sunny days, either in the front, or by 

 drawing open some of the top-glasses next the 

 back, and more freely as the warm weather ad- 

 vances. 



As the summer growth of the vines advances, 

 the young shoots require great attention; all 



