be placed in their proper expofure during the fummer, and, until 

 their hardinefs is determined,, removed under the fir or other 

 trees in winter, the thicknefs of whole 'fliade ought to be ,pro- 

 portioned to the a,p,parent tendernefs of 4:Iief)lant. 



Thesb pots or boxes fhould be always funk in the earthy 

 and in winter the furface covered with mofs. The drier the 

 ground the better, for iunken pots aje liable to be too damp. 



The beft manner of treating Ericas is to place them in a 

 proper fituation in the fpring, and on the approach of fevere 

 weather to fix branches of fpruce-fir about them, augmenting the 

 covering as the cold encreafes. But as the cold feldom becomes 

 fuddenly fevere, and a flight froft does them little injury, the 

 Erica Tubliflora, one of the moft tender, bearing about 29S of 

 Fahrenheit's thermometer; it is beft not to begin covering too 

 foon, Idft, as they are plants that require a very fmall degree of 

 heat, they fliould be made to flioot, in which cafe the flightefl: 

 froft will perhaps deftroy them.. To proted herbaceous plants 

 from froft, mofs is the moft proper covering, by remaining alive 

 through the wintter ; even after being pulled up, it is not liable 

 to heating and putrefadion, as all dead vegetable fubftances are, 

 by which they impart to the plant heat and moifture (the two 

 principal agents which caufe vegetation) thereby putting the 

 vegetating powers in adion, and filling the plant with fap, at an 

 improper feafon. In our culture of annuals our only care is di- 

 VoL. VIII. Q, reded 



