THE PINE APPLE. 135 



the top of the flue, and extends no farther than it 

 extends. It is evident, therefore, that scarcely any 

 advantage can result from the use of the boiler, 

 unless it be that the heat is thus sent more effectu- 

 ally to the opposite end of the house to that at 

 which the fire enters, or that the vapour is very 

 readily admitted from the steam-pipe to fill the air 

 of the house. None of these advantages, however, 

 will compensate the expense of the apparatus ; the 

 first is hardly wanted where houses are placed in 

 a connected range, as the two outside ends of the 

 houses are kept warm by the flues entering there ; 

 and in the other houses a warm end is placed 

 against a cold one. 



Soil. At first, Mr. Oldacre used good sound 

 loam and dung, with a little sand, when he found 

 it necessary ^ but he has for the last four years 

 grown his fruiting plants chiefly in powdered 

 bones, in which he thinks they thrive better, and 

 produce more highly-flavoured fruit. We have not, 

 however, been able to discover any thing in the 

 appearance of either fruit or plants, to lead us to 

 suppose that powdered bones are more congenial 

 to the Pine plant than good loam and dung; his 

 plants are certainly not equal to Mr. Baldwin's, nor 

 superior to those grown by Mr. Andrews, or Mr. 

 Aiton. We, therefore, consider their thriving 

 in this compost a proof more of the hardy nature 

 of the Pine, than of any thing else j we have no, 

 doubt it would grow in powdered granite, or 



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