ROUND TABLE DISCUSSION 225 



removing the insect from its natural environment, dramatic 

 consequences may follow. I have been told that the Cynthia 

 silkmoth was once quite common in New York where it 

 produced two broods a year, as it did in its native South East 

 Asia. In New York, however, average temperatures are often 

 higher and in one particularly hot summer, a third generation 

 was begun which failed to reach completion before the Aikmthus 

 trees lost their leaves in the fall. The resulting population crash 

 has remained a permanency. 



Moderator: We have now come to the end of our discussion. 

 I would like to thank all of you for your active participation. 

 I am wondering what the position will be in a few years when 

 we meet again to discuss cryptobiosis. I believe the whole 

 classification of the subject will be different and perhaps Dr. 

 Keynan might consider the reconvening of this conference in a 

 few years. 



On behalf of all of you, I would like to thank him for the 

 hospitality he has extended to us. I would also like to thank 

 most warmly our guests the Halvorsons — father and son, and 

 Dr. Lees for their most stimulating contributions to our dis- 

 cussions, and finally all of you for the friendly and scientific 

 spirit in which our work was conducted. 



