Tin; PINK APPLE. 17 



weather, and on the length of summer or winter. 

 In some years I have been obliged to put them in 

 a hot-house in September, and keep them there 

 until April ; but in common years they are moved 

 into the hot-house on the 10th or 12th of October, 

 and from thence again into the hot-bed of tan in 

 the middle of March. The flues must be dried 

 by heating them before the plants are brought 

 into the hot-house, not only to remove the damp 

 which, on the first heating, is powerful and in- 

 jurious, but also to discover whether there are any 

 openings by which the smoke may escape into the 

 hot-house, for they must be carefully stopped up. 

 This pit or wintering house may be of any con- 

 venient length or breadth ; supposing two joined 

 together, then the fire flues (fig. 1. a. a.) may be 

 formed at the extreme ends; the smoke may first 

 enter and fill a vault of the whole width and length 

 of the pit (b.) ; it may afterwards enter a flue 

 (c. c.) and pass round the pit, and then out by a 

 chimney in the back wall. 



The sashes of the pits at Drieoeck are six feet 

 wide, and three and a-half feet broad, and each has 

 a cover of boards which are raised up and let down 

 by means of cords and pullies, the better to retain 



c 



