OF INSECTS, &C. 3S7 



wide enough to admit it, and sprinkle all the plants, 

 pressing your finger on the top of the pipe, to 

 spread the water like a fine shower of rain, playing 

 also against the top lights and shelves till the wa- 

 ter stands an inch deep in the paths of the house. * 

 If you cannot conveniently get the engine into the 

 house, open the front lights, or when there are no 

 front lights, slide down the top lights, and throw 

 the water in at the front or top. When you begin 

 this operation, if in the inside, eveiy light must be 

 shut ; and if you throw the water in at the front, 

 you must keep only one light open, which shut 

 immediately when you have sufficiently watered 

 that part of the house opposite to it : and, then 

 opening another light, proceed as before ; and so 

 on, till the whole is properly watered. The house 

 must then be kept close shut till next morning : 

 this w^ill cause such an exhalation from the glass, 

 tan, (if there are any tan-beds in the house,) &c. 

 that the plants will be covered all over with the 

 vapour, which will infallibly destroy the Cocci, 

 Aphides and other insects : but the watering must 

 be repeated every afternoon, during hot weather 

 only. By this you will also save a great' deal of 

 labour in watering ; but such plants as require 

 much watering should bfe watered before you be- 

 gin to sprinkle the house. Before morning the 



* I have lately seen a small copper engine, made by Mr. Phi- 

 lipsj Engine-Maker, Blackfriars Roacl^ which answers very well, 

 when a barrow engine cannot be got iuto the house. 



Z 



