FIGURE II— APPARATUS FOR FREEZING TISSUE THAT RE- 

 QUIRED LOWER THAN -12° TO -15° C. TO KILL 



1. Galvanized iron cylinder to the bottom of which the twigs con- 

 taining buds were fastened; 2 and 3. Galvanized iron cylinders placed 

 one withm the other with space between their walls for freezing mixture; 



4. Cylinder to receive 3, allowing space for freezing mixture around 3; 



5. Insulating box filled with sawdust; 6. Wheel operated by electric 



?. L.d n for b (2): n SeYpa'geX^ tUr " in9 C ° nti " U0US 'y while <™*«r, 



