4' 



APRIL.] HOT-HOUSE. 



plants are near the glass generally, the glass should 

 have a coat of very thin white-wash (not lime), where 

 the glass is thin and light in colour; but if it is thick 

 and green, there need be no white-washing. 



The plants will need a liberal supply of water every 

 day. We have so constantly cautioned the operator on 

 administering this element, that a repetition here is un- 

 necessary. Sprinkle them well with the syringe or en- 

 gine in the evenings about sundown, four or five times 

 a week, and strictly observe that none of them are 

 omitted ; for where there are such, it is probable they 

 are attacked by the red spider. If any of these are 

 detected, syringe them powerfully morning and evening. 

 Water is most effectual in their destruction, and most 

 congenial to the plants. Give regular fumigations to 

 destroy the green-fly. Wherever there is dust or foul- 

 ness contracted on the foliage, wash all clean with 

 sponge and water; for on these insects are harboured 

 in such quantities that they, in a short time, would 

 overrun all the plants in the house. Keeping the house 

 constantly clean, the plants clear of decayed leaves 

 and every thing of a corroding nature, and duly syring- 

 ing them, is the surest method of not being much 

 troubled with insects. 



For repotting plants, see next month ; except those 

 that you are fostering to a great extent, such as 

 Alstr&merias, Calceolarias, or any herbaceous plants 

 that require great encouragement to make them flower 

 well. These should always be repotted, as soon as the 

 roots come to be round the outside of the ball. 



22 



