51 



bark-bed ; the syringing must be omitted, and 

 use made of the steam only, until they again 

 become reasonably dry. Neither should it be 

 performed when the sun acts freely upon the 

 plants, lest their leaves become in consequence 

 disfigured. For such is the law of nature, that 

 the water forms itself into little spherules, the 

 surfaces of which collect the rays of the sun, in 

 a greater or less degree according to their con- 

 vexity ; and thereby the leaves are disfigured 

 by being burned in the focus of each spherule, 

 and consequently prove very disagreeable to 

 the eye. 



SECTION IV. 



As the season advances, it will become ne- 

 cessary to admit a reasonable portion of air on 

 all fine sunny days ; and also to decrease the 

 strength of the fires at night : but in these par- 

 ticulars , the only criterions, to be guided by, 

 are experience, and observations on the wea- 

 ther, the variations in which render it utterlv 

 impossible to lay down any certain rule to act 

 by, further than the admonitions of the Ther- 

 mometer ; observing to keep it pretty near the 

 points already specified, in Chap. 2. Sect. 2. 

 e 2 



