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when we shall as seldom see a house without the one 

 as the other ; and wherever one is used, it will be 

 found that it is not a sprinkling of water on the flues 

 or pipes, once or twice a day, that will keep a suffi- 

 ciency of moisture in the air, but that water should 

 be almost constantly on the pipes ; and that the bor- 

 ders, footpaths, &c. should be sprinkled frequently 

 besides. But, as much judgment is required in ma- 

 naging this, let the hygrometer be your guide. The 

 admission of fresh air is intimately connected with 

 the preceding ; yet almost invariably do we see air 

 admitted without the slightest regard to its eifects on 

 the internal atmosphere, further than keeping down 

 the heat. In long-continued dull, cold weather, the 

 houses are usually kept nearly closed ; consequently 

 more moisture is retained than usual, and the shoots 

 and leaves are tender, and very susceptible of injury 

 from sudden change ; but as soon as a strong, clear 

 sunshine occurs, the houses are opened, and air let in 

 unsparingly to keep down the heat. The vines are 

 thus checked ; and if this happen just when the 

 grapes are colouring, they do no more good, but as- 

 sume a dull brown colour, viz., the dingy hue so well 

 known and so much dreaded b}^ gardeners ; and when 

 this happens, nothing will recover them. The too 

 frequent practice of keeping on strong fires, with the 

 view of remedying the evil, only aggravates it. From 

 the time the vines are started, the strictest attention 



