OF THE CUCUMBER. 6;^ 



then the plants were not killed, but only fome of their 

 leaves injured. 



As the fteam rifes out of the dung of the linings it 

 is quickly difperfed and mixed with the common air, 

 by which its pernicious qualities are almofl inftanta- 

 neoufly deftroyed. It is, therefore, not likely that 

 the fteani arifing from the linings on the outfide of 

 the frames fhould become hurtful to the plants in the 

 frames, unlefs it were to pafs immediately from the 

 linings into the frames before its pernicious qualities 

 were meliorated or deflroyed. 



In the frames there is a continual fteam or evapo- 

 ration arifing ; and as this vapour is of a fweet, healthy^, 

 invigorating nature, if too much air be given, it will 

 pafs off too rapidly, and that before it has had time 

 to render to the plants that fervice which is neceffary ^ 

 and if too little air be given, the vapours will be re- 

 tained too long, and become too thick, and thereby the 

 free perfpiration of the plants will be obitrufted, which 

 ■will foon render their flate weak and fickly, and the 

 fruit will neither fet nor fwell kindly. 



In winter, when the heat of the linings is great, 

 if tare be not taken, the air in the frames will be 

 rendered too dry. To prevent this, I either cover 

 the flues thinly with moill: mould, or keep them 

 damp by watering *. 



* In no part of the frame fhould the mould be fufFered to be- 

 come dry and hiifliy. When the heat is great, water Ihould he 

 frequently and plentifully poured upon the flues, v/hich will keep 

 the bricks and mould adjoining to them in a moifi ftatc. 



In 



