APRIL> ] THE HOT-HOUSE. 357 



the fruiting plants, in particular, will require this. If the bark was 

 not turned and fresh tan added thereto, in March, it should be done 

 in the first week of this month, as there directed. But if then at- 

 tended to, th,cre is no necessity for it now, as the pit will yet con- 

 tinue to be in excellent order. 



Air should now be admitted in proportion to the er.creasingheat 

 f the season ; a great deal depends on this article ; for without due 

 attention to its utility and great influence on the plants, they may, 

 if deprived of a sufficiency, be soon rendered of little value. 



Every warm, sunny day, when the wind is not cold, let some of 

 the glasses or lights, be opened a little way, and more in propor- 

 tion to the heat of the day ; but this should not be done before nine 

 or ten o'clock in the morning, and they ought not to be continued 

 open longer, than while the air in the house keeps up to a proper 

 degree of warmth. 



Towards the end of the month, you will find that a sufficiency of 

 air cannot be admitted by the upright glasses ; therefore, it will be 

 very necessary, to have your roof lights constructed so as to slide 

 up and down, by means of pullies. Seventy or seventy-two degrees 

 of Fahrenheit, will be a good medium for sun-heat ; but always 

 when it rises above that, give abundance of air, and in the early 

 part of the month, this is done with more safety, by sliding open 

 a sufficient number of the roof-lights. 



Succession Pines, 



The succession pines, especially those intended for fruiting next 

 season, should be shifted as early in this month as possible, if not 

 done in March. For the method of doing it, and the manner of 

 treating them after, see page 302. 



The crowns and suckers of last season, should now, also, be shift- 

 ed into larger pots, and managed in like manner. 



Treatment of the other "various Stove Plants. 



The general treatment directed for the pines, may be given in 

 common, to most other stove plants. With respect to shifting, or 

 adding fresh earth to the pots, that should now be done in the same 

 manner as directed for the green-house plants; after which, if 

 there be room in the bark -bed, let the pots be immediately plunged 

 to their rims therein ; and by the assistance of the kindly heat, the 

 plants will root freely in the new earth, which will give them 

 strength, promote their health, revive their colour, and prepare 

 them the better, for a removal, into the open air, towards the end 

 of next month. 



The woody kinds will now require frequent and gentle waterings ; 

 the herbaceous, occasionally ; but the succulent sorts, should get 



