292 Ltilil H BURBANK 



their roots fast enougii to keep up with Uie grad- 

 uallj disappeftring moitturet and fo might die of 

 thirrt. 



When seedlings are removed from the protec- 

 tioD of the glass bouse to the open air. ur in trans- 

 planting in the fields, it is best, if possible, to 

 choose a time when there are no severe winds, 

 and when the sun is not too hot and the atmos- 

 phere neither too dry nor too chilly. 



Generally in California tender plants best with- 

 stand moving from the greenhouse to the open 

 air just before or during a warm rain. At such 

 times the atmosphere is similar to that in the 

 greenhouse. Even under the most favorable 

 circumstaDoes they must be shielded from 

 winds or bright sunlight to which they are 

 not adapted. 



To accustom the tender seedlings to outdoor 

 conditions, the flats are placed in square frames 

 about six feet wide and a foot or two high. These 

 are covered with a portable covering made of 

 common laths nailed on narrow strips of board, 

 so placed that the space between the laths is about 

 equal to the width of a single lath. 



When the boxes of plants are placed in these 

 frames, it is best to have some slats underneath 

 so they will not rest on the ground; otherwise 

 fungous diseases are often communicated from 



