Iviil INTRODUCTION. 



may occur will be better to be moderated by the use of 

 a light shading of tiffany or other floral shading. It 

 will be necessary to use some kind of covering material 

 for the glass at night, till the nights become so warm as 

 that it may be dispensed with. Straw or mats will serve 

 this purpose well ; but they must be kept in a thoroughly 

 dry condition, otherwise they are useless. In very cold 

 weather, such as often occurs in March, it will be well to 

 put the covering on early in the afternoon, while the sun 

 is yet on the frame, with a view to retaining the heat 

 that has been absorbed during the day. When watering 

 becomes necessary, it is requisite to do it with discrimi- 

 nation, applying the water only to such pots as appear 

 to want it, and always with a finely-perforated rose — and 

 from first to last the water should be tepid. As the day 

 lengthens and the sun gains power, it may become 

 necessary to admit a little air at the top of the frame. 

 The temperature must not be allowed to ascend at any 

 time above 80° without a little air being admitted ; and 

 it should be done by tilting at the back in preference 

 to pushing the light up or down. So long, however, as 

 there are no plants appearing in any of the pots, the 

 temperature of the frame may be regulated quite well by 

 the use of the shading ; but when they begin generally 

 to rise above the soil, a little more discriminate use of 

 the shade and a bolder admission of air will have to be 

 adopted. When any considerable number of the pots 

 show a reasonable crop of plantlets, they should be 

 moved from the seed-frame to that which it was re- 

 marked at the beginning: of these sugg-estions should 

 be in readiness to receive the kinds that would germi- 

 nate and come away earliest. In their new quarters 



