FIGURE 

 KILLED AT 



I. FREEZING APPARATUS FOR PLANTS THAT 

 A TEMPERATURE NOT LOWER THAN -12 TO -15 C. 



1. Space in which salt and ice mixture was placed; 



2. Chamber in which plants were frozen: 



3. Lid which covered freezing chamber: 



4. Wire leading to small electric fan beneath hardware 

 bottom on which plants were frozen. (See page 156.) 



cloth 



