THE PINE APPLE. 55 



I conceive that the urine of sheep contains a 

 greater quantity of mucilage, or oleaginous matter, 

 than the dung of those animals : and this opinion 

 is founded upon observations made in sheep-pas- 

 tures; where, during the summer months, the effects 

 of both are easily distinguished. I also presume 

 that the reduced sward in the pens receives a very 

 considerable degree of fertility from the feet of the 

 sheep. 



Where oak-leaves are not used in hot-houses in- 

 stead of bark, the vegetable-mould may be made 

 by laying a quantity of them together, in a heap 

 sufficiently large to ferment, as soon as they fall 

 from the trees : they should be covered for some 

 time at first, to prevent the upper leaves from being 

 blown away. The heap should afterwards be fre- 

 quently turned, and kept clean from weeds : the 

 leaves will be two years before they are sufficiently 

 reduced to be fit for use. 



I shall just observe, that it will be proper to keep 

 the different heaps of compost at all times clean 

 from weeds, to turn them frequently, and to round 

 them up in long rainy seasons. If covered, the 

 better : but they should be spread abroad in con- 

 tinued frosts, and in fine weather, 



General Management. The pots he recommends 

 are : 



Inches diameter Inches 

 at the top. * deep. 



1. Pots for full-sized crowns 



and suckers .... 6 5^ 



E 4 



