XIV PREFACE 



settlement of a cold moisture upon them, which 

 cannot be removed without assistance from the 

 sun : particular attention, therefore, to the 

 directions given upon that point is highly 

 necessary ; indeed, it cannot be too strongly 

 impressed on the mind of the horticulturist that 

 upon this greatly depends the success of his 

 endeavours to mature them to any degree of 

 perfection. 



In the remaaks upon preserving the plants 

 from a cold moisture, in the most inclement 

 weather, I have called to assistance what may be 

 technically termed an artificial sun ; and as this 

 most material point may be perfectly understood 

 I shall here describe it more particularly. 



Keep the bed always wrapped up to nearly 



the top of the box with hay, straw, or any kind 

 of sweet litter; observing that hay, however 



